@Book{		  ACorradini-RHeckel:00,
  title		= {Workshop on Graph Transformation and Visual Modelling},
  editor	= {A.~Corradini and R.~Heckel},
  year		= {2000},
  publisher	= {Carleton Scientific},
  note		= {Satellite to ICALP'2000. To appear},
  added		= {2000-05-23-18-31-23}
}

@Article{	  ACorradini-UMontanari:92,
  author	= {A.~Corradini and U.~Montanari},
  title		= {An algebraic Semantics for Structured Transition Systems
		  and its Application to Logic Programs},
  journal	= {Theoretical Computer Science},
  volume	= {1},
  number	= {103},
  year		= {1992},
  added		= {2000-05-23-18-31-23}
}

@Misc{		  AGG:00,
  author	= {AGG},
  year		= {2000},
  note		= {Download a Graph Transformation System for free},
  added		= {2000-05-23-18-31-23},
  url		= {http://tfs.cs.tu-berlin.de/agg/}
}

@Article{	  AGabrielian-SGinsburg:74,
  author	= {A.~Gabrielian and S.~Ginsburg},
  title		= {Grammar Schemata},
  journal	= {Journal of the ACM},
  volume	= {21},
  pages		= {213--226},
  year		= {1974},
  added		= {2000-05-23-18-31-23}
}

@Article{	  AJoshi-LLevy-MTakahashi:73,
  author	= {A.~Joshi and L.~Levy and M.~Takahashi},
  title		= {Tree Adjunct Grammars},
  journal	= {Journal of Computer and System Sciences},
  volume	= {7},
  number	= {1},
  pages		= {37--65},
  year		= {1973},
  publisher	= {Academic Press},
  added		= {2000-05-23-18-31-23}
}

@Article{	  AKolmogorov-VUspenskii:63,
  author	= {A.~Kolmogorov and V.~Uspenskii},
  title		= {On the Definition of an Algorithm},
  journal	= {American Mathematical Society Translations},
  series	= {2},
  volume	= {29},
  pages		= {216--245},
  year		= {1963},
  note		= {Translated from Russian Original Uspekhi Mat. Nauk.,
		  1958},
  added		= {2000-05-23-18-31-23}
}

@Article{	  AKolmogorov:53,
  author	= {A.~Kolmogorov},
  title		= {About the notion of Algorithm},
  journal	= {Uspekhi Mat. Nauk.},
  volume	= {8},
  number	= {4/56},
  pages		= {175--176},
  year		= {1953},
  added		= {2000-05-23-18-31-23},
  language	= {Russian}
}

@InProceedings{	  ALindenmayer:74,
  author	= {A.~Lindenmayer},
  title		= {L-Systems in their Biological Context},
  booktitle	= {Proceedings of the Conference on Biologically motivated
		  Automata Theory},
  pages		= {65--69},
  year		= {1974},
  note		= {MITRE Corp. McLean Va.},
  added		= {2000-05-23-18-31-23}
}

@Article{	  AMaggiolo-Schettini-JWinkowski:96,
  author	= {A.~Maggiolo-Schettini and J.~Winkowski},
  title		= {A Kernel Language for Programmed Rewriting of
		  (Hyper)Graphs},
  journal	= {Acta Informatica},
  volume	= {33},
  number	= {6},
  pages		= {523--546},
  year		= {1996},
  publisher	= {Springer-Verlag},
  added		= {2000-05-23-18-31-23}
}

@Article{	  ANakamura-KAizawa:83,
  author	= {A.~Nakamura and K.~Aizawa},
  title		= {On a Relationship between Graph L-Systems and Picture
		  Languages},
  journal	= {Theoretical Computer Science},
  volume	= {24},
  pages		= {161--177},
  year		= {1983},
  publisher	= {Elsevier/North Holland},
  added		= {2000-05-23-18-31-23}
}

@Article{	  ARosenfeld-JPfaltz:66,
  author	= {A.~Rosenfeld and J.~Pfaltz},
  title		= {Sequential Operations in Digital Picture Processing},
  journal	= {Journal of the ACM},
  volume	= {13},
  pages		= {471--494},
  year		= {1966},
  added		= {2000-05-23-18-31-23}
}

@Article{	  ARosenfeld:70,
  author	= {A.~Rosenfeld},
  title		= {Connectivity in Digital Pictures},
  journal	= {Journal of the ACM},
  volume	= {17},
  pages		= {146--160},
  year		= {1970},
  added		= {2000-05-23-18-31-23}
}

@TechReport{	  ARosenfeld:70b,
  author	= {A.~Rosenfeld},
  title		= {Isotonic Grammars, parallel Grammars and Picture
		  Grammars},
  number	= {70-111},
  year		= {1970},
  institution	= {Computing Science Centre, University of Maryland},
  added		= {2000-05-23-18-31-23}
}

@Article{	  ARosenfeld:75,
  author	= {A.~Rosenfeld},
  title		= {A Note on Cycle Grammars},
  journal	= {Information and Control},
  volume	= {27},
  number	= {4},
  pages		= {374--377},
  year		= {1975},
  publisher	= {Academic Press},
  added		= {2000-05-23-18-31-23}
}

@Article{	  ASalomaa:72,
  author	= {A.~Salomaa},
  title		= {Matrix Grammars with a Leftmost Restriction},
  journal	= {Information and Control},
  volume	= {20},
  number	= {2},
  pages		= {143--149},
  year		= {1972},
  publisher	= {Academic Press},
  added		= {2000-05-23-18-31-23}
}

@InProceedings{	  ASchuerr-AWinter-AZuendorf:95,
  author	= {A.~Sch{\"u}rr and A.~Winter and A.~Z{\"u}ndorf},
  title		= {Graph Grammar Engineering with PROGRES},
  editor	= {Botella and Sch{\"a}fer},
  booktitle	= {ESEC'95 Proceedings of the 5th European Software
		  Engineering Conference},
  series	= {Lecture Notes in Computer Science},
  volume	= {989},
  pages		= {219--234},
  year		= {1995},
  publisher	= {Springer-Verlag},
  address	= {Berlin},
  added		= {2000-05-23-18-31-23}
}

@Article{	  ASchuerr-AWinter-AZuendorf:96,
  author	= {A.~Sch{\"u}rr and A.~Winter and A.~Z{\"u}ndorf},
  title		= {Spezifikation und Prototyping graphbasierter Systeme},
  journal	= {Informatik Forschung und Entwicklung},
  volume	= {11},
  number	= {4},
  pages		= {191--202},
  year		= {1996},
  publisher	= {Springer-Verlag},
  address	= {Berlin},
  added		= {2000-05-23-18-31-23}
}

@TechReport{	  ASchuerr-AWinter:97,
  author	= {A.~Sch{\"u}rr and A.~Winter},
  title		= {Modules and updatable Graph Views for Programmed Graph
		  Rewriting Systems},
  series	= {Aachener Informatikberichte},
  number	= {97-3},
  year		= {1997},
  institution	= {Fachgruppe Informatik, RWTH Aachen},
  added		= {2000-05-23-18-31-23},
  issn		= {0935-3232}
}

@TechReport{	  ASchuerr-DBlostein:97,
  author	= {A.~Sch{\"u}rr and D.~Blostein},
  title		= {Computing with Graphs and Graph Rewriting},
  series	= {Aachener Informatikberichte},
  number	= {97-8},
  year		= {1997},
  institution	= {Fachgruppe Informatik, RWTH Aachen},
  added		= {2000-05-23-18-31-23},
  issn		= {0935-3232}
}

@Unpublished{	  ASchuerr-PBottoni-GTaentzer:00,
  author	= {A.~Sch{\"u}rr and P.~Bottoni and G.~Taentzer},
  title		= {Efficient Parsing of Visual Languages based on Critical
		  Pair Analysis and Contextual Layered Graph Transformation},
  year		= {2000},
  note		= {Submitted to the VL'2000 Conference},
  added		= {2000-05-23-18-31-23}
}

@TechReport{	  ASchuerr:94,
  author	= {A.~Sch{\"u}rr},
  title		= {Logic Based Programmed Structure Rewriting Systems},
  series	= {Aachener Informatikberichte},
  number	= {94-13},
  year		= {1994},
  institution	= {Fachgruppe Informatik, RWTH Aachen},
  added		= {2000-05-23-18-31-23},
  issn		= {0935-3232}
}

@Manual{	  ASchuerr:98,
  author	= {A.~Sch{\"u}rr},
  title		= {The PROGRES Language Manual Version 9.X},
  year		= {1998},
  organization	= {Lehrstuhl Informatik III, RWTH Aachen},
  note		= {Version 10.X is already existing but I don't know when the
		  manual will be released},
  added		= {2000-05-23-18-31-23}
}

@Article{	  AShaw:70,
  author	= {A.~Shaw},
  title		= {Parsing of Graph representable Pictures},
  journal	= {Journal of the ACM},
  volume	= {17},
  pages		= {453--481},
  year		= {1970},
  added		= {2000-05-23-18-31-23}
}

@Article{	  AWagner-MGogolla:96,
  author	= {A.~Wagner and M.~Gogolla},
  title		= {Defining operational Behaviour of Object Specifications by
		  Attributed Graph Transformations},
  journal	= {Fundamenta Informaticae},
  volume	= {26},
  pages		= {407--431},
  year		= {1996},
  publisher	= {IOS Press},
  added		= {2000-05-23-18-31-23}
}

@PhDThesis{	  AWinter:99,
  author	= {A.~Winter},
  title		= {Visuelles Programmieren mit Graph-Transformationen},
  year		= {1999},
  school	= {Fakult{\"a}t f{\"u}r Mathematik, Naturwissenschaften und
		  Informatik, Rheinisch-Westf{\"a}lische Technische
		  Hochschule Aachen},
  added		= {2000-05-23-18-31-23}
}

@TechReport{	  AZuendorf:93,
  author	= {A.~Z{\"u}ndorf},
  title		= {A Heuristic for the Subgraph Isomorphism Problem in
		  executing PROGRES},
  series	= {Aachener Informatikberichte},
  number	= {93-15},
  year		= {1993},
  institution	= {Fachgruppe Informatik, RWTH Aachen},
  added		= {2000-05-23-18-31-23},
  issn		= {0935-3232}
}

@PhDThesis{	  AZuendorf:95,
  author	= {A.~Z{\"u}ndorf},
  title		= {Programmierte Graph-Ersetzungs-Systeme: Spezifikation,
		  Implementierung und Anwendung in einer integrierten
		  Entwicklungs-Umgebung},
  year		= {1995},
  school	= {Fakult{\"a}t f{\"u}r Mathematik, Naturwissenschaften und
		  Informatik, Rheinisch-Westf{\"a}lische Technische
		  Hochschule Aachen},
  note		= {Published by Deutscher Universit{\"a}tsverlag, Wiesbaden},
  added		= {2000-05-23-18-31-23}
}

@Article{	  Aalbersberg-Ehrenfeucht-Rozenberg:86,
  author	= {Aalbersberg, I. J. and Ehrenfeucht, A. and Rozenberg, G.},
  title		= {On the Membership Problem for Regular {DNLC} Grammars},
  journal	= {Discrete Applied Mathematics},
  volume	= {13},
  pages		= {79--85},
  year		= {1986},
  added		= {1996-03-28-11-35-01}
}

@InProceedings{	  Aalbersberg-Engelfriet-Rozenberg:87,
  author	= {IJsbrand Aalbersberg and Joost Engelfriet and Grzegorz
		  Rozenberg},
  title		= {{Restricting the Complexity of Regular DNLC Languages}},
  editor	= {Hartmut Ehrig and Manfred Nagl and Grzegorz Rozenberg and
		  Azriel Rosenfeld},
  booktitle	= {Proc.\ 3rd Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {291},
  pages		= {147--166},
  year		= {1987},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@Article{	  Aalbersberg-Engelfriet-Rozenberg:90,
  author	= {Ijsbrand Jan Aalbersberg and Joost Engelfriet and Grzegorz
		  Rozenberg},
  title		= {The Complexity of Regular {DNLC} Graph Languages},
  journal	= {Journal of Computer and System Sciences},
  volume	= {40},
  pages		= {376--404},
  year		= {1990},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Abe-Mizumoto-Toyoda.ea:73,
  author	= {N. Abe and M. Mizumoto and J.-I. Toyoda and K. Tanaka},
  title		= {Web Grammars and Several Graphs},
  journal	= {Journal of Computer and System Sciences},
  volume	= {7},
  pages		= {37--65},
  year		= {1973},
  added		= {1996-03-13-10-09-20}
}

@Book{		  Adamek-Herrlich-Strecker:90,
  author	= {Ji\u{r}\'i Ad\'amek and Horst Herrlich and George Strecker},
  title		= {Abstract and Concrete Categories},
  year		= {1990},
  publisher	= {John Wiley},
  address	= {New York},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Alberich-Burmeister-Rossello.ea:96,
  author	= {Alberich, R. and Burmeister, P. and Rossell{\'o}, F. and
		  Valiente, G. and Wojdyto, B.},
  title		= {A Partial Algebras Approach to Graph Transformation},
  editor	= {J. Cuny and H. Ehrig and G. Engels and G. Rozenberg},
  booktitle	= {Proc. Fifth Intl. Workshop on Graph Grammars and Their
		  Application to Comp. Sci.},
  series	= {Lecture Notes in Computer Science},
  volume	= {1073},
  pages		= {1--15},
  year		= {1996},
  publisher	= {Springer},
  added		= {1996-08-02-16-55-34}
}

@InProceedings{	  Alberich-Burmeister-Rossello.ea:96b,
  author	= {Ricardo Alberich and Peter Burmeister and Francesc
		  Rossell{\'o} and Gabriel Valiente and Boleslaw Wojdylo},
  title		= {{A Partial Algebras Approach to Graph Transformation}},
  editor	= {Janice E. Cuny and Hartmut Ehrig and Gregor Engels and
		  Grzegorz Rozenberg},
  booktitle	= {Proc.\ 5th Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {1073},
  pages		= {1--15},
  year		= {1996},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@TechReport{	  Alpern-Carle-Rosen:87,
  author	= {B. Alpern and A. Carle and B. Rosen},
  title		= {Incremental evaluation of attributed graphs},
  number	= {CS 87-29},
  year		= {1987},
  institution	= {Brown University},
  added		= {1996-08-02-14-49-29}
}

@Book{		  Anderson:70,
  author	= {S. Anderson},
  title		= {Graph Theory and Finite Combinatorics},
  year		= {1970},
  publisher	= {Markham},
  address	= {Chicago},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Andries-Engels-Habel.ea:96,
  author	= {Marc Andries and Gregor Engels and Annegret Habel and
		  Berthold Hoffmann and Hans-J{\"o}rg Kreowski and Sabine
		  Kuske and Detlef Plump and Andy Sch{\"u}rr and Gabriele
		  Taentzer},
  title		= {Graph Transformation for Specification and Programming},
  year		= {1996},
  note		= {In preparation},
  added		= {1996-03-13-10-09-20}
}

@TechReport{	  Andries-Engels-Habel.ea:96b,
  author	= {Marc Andries and Gregor Engels and Annegret Habel and
		  Berthold Hoffmann and Hans-J{\"o}rg Kreowski and Sabine
		  Kuske and Detlef Plump and Andy Sch{\"u}rr and Gabriele
		  Taentzer},
  title		= {Graph Transformation for Specification and Programming},
  number	= {7/96},
  year		= {1996},
  institution	= {Univ.\ Bremen},
  type		= {Report},
  added		= {1997-03-18-10-42-26}
}

@InProceedings{	  Andries-Engels:94,
  author	= {Marc Andries and Gregor Engels},
  title		= {Syntax and Semantics of Hybrid Database Languages},
  editor	= {Hans J{\"u}rgen Schneider and Hartmut Ehrig},
  booktitle	= {Graph Transformations in Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {776},
  pages		= {19--36},
  year		= {1994},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Andries-Paredaens:92,
  author	= {Marc Andries and Jan Paredaens},
  title		= {A Language for Generic Graph-Transformations},
  editor	= {G. Schmidt and R. Berghammer},
  booktitle	= {Graph-Theoretic Concepts in Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {570},
  pages		= {63--74},
  year		= {1992},
  added		= {1996-03-13-10-09-20}
}

@Book{		  Arbib-Manes:75,
  author	= {Michael A. Arbib and Ernest G. Manes},
  title		= {Arrows, Structures, and Functors},
  year		= {1975},
  publisher	= {Academic Press},
  address	= {New York},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Arbib-Manes:79,
  author	= {Michael A. Arbib and Ernest G. Manes},
  title		= {{Partially-Additive Monoids, Graph-Growing, and the
		  Algebraic Semantics of Recursive Calls}},
  editor	= {Volker Claus and Hartmut Ehrig and Grzegorz Rozenberg},
  booktitle	= {Proc.\ 1st Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science and Biology},
  series	= {Lecture Notes in Computer Science},
  volume	= {73},
  pages		= {127--138},
  year		= {1979},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Ariola-Klop-Plump:97,
  author	= {Ariola, Zena M. and Klop, Jan Willem and Plump, Detlef},
  title		= {Confluent Rewriting of Bisimilar Term Graphs},
  booktitle	= {Proc.\ Fourth Workshop on Expressiveness in Concurrency},
  series	= {Electronic Notes in Theoretical Computer Science},
  volume	= {7},
  year		= {1997},
  publisher	= {Elsevier},
  note		= {URL:
		  \texttt{http://www.elsevier.nl/locate/entcs/volume7.html}},
  added		= {1997-09-01-19-34-43}
}

@TechReport{	  Ariola-Klop-Plump:98,
  author	= {Zena M. Ariola and Jan Willem Klop and Detlef Plump},
  title		= {Bisimilarity in Term Graph Rewriting},
  number	= {SEN-R9801},
  year		= {1998},
  institution	= {CWI, Amsterdam},
  type		= {Report},
  added		= {1998-01-26-18-34-25}
}

@InProceedings{	  Arnborg-Andrzej:96,
  author	= {Arnborg, Stefan and Proskurowski Andrzej},
  title		= {A Technique for Recognizing Graphs of Bounded Treewidth
		  with Application to Subclasses of Partial 2-Paths},
  editor	= {J. Cuny and H. Ehrig and G. Engels and G. Rozenberg},
  booktitle	= {Proc. Fifth Intl. Workshop on Graph Grammars and Their
		  Application to Comp. Sci.},
  series	= {Lecture Notes in Computer Science},
  volume	= {1073},
  pages		= {469--486},
  year		= {1996},
  publisher	= {Springer},
  added		= {1996-08-02-16-55-34}
}

@Article{	  Arnborg-Corneil-Proskurowski:87,
  author	= {Stefan Arnborg and D. G. Corneil and Andrzej
		  Proskurowski},
  title		= {Complexity of Finding Embeddings in a $k$-Tree},
  journal	= {SIAM Journal of Alg. and Discrete Methods},
  volume	= {8},
  pages		= {277--284},
  year		= {1987},
  added		= {1996-03-13-10-09-20}
}

@TechReport{	  Arnborg-Courcelle-Proskurowski.ea:90,
  author	= {S. Arnborg and Bruno Courcelle and A Proskurowski and D.
		  Seese},
  title		= {An algebraic theory of graph reduction},
  number	= {LaBRI TR 90--02},
  year		= {1990},
  institution	= {Univ. Bordeaux},
  added		= {1996-03-28-11-35-01}
}

@InProceedings{	  Arnborg-Courcelle-Proskurowski.ea:91,
  author	= {Stefan Arnborg and Bruno Courcelle and Andrzej
		  Proskurowski and Detlef Seese},
  title		= {{An Algebraic Theory of Graph Reduction}},
  editor	= {Hartmut Ehrig and Hans-J{\"o}rg Kreowski and Grzegorz
		  Rozenberg},
  booktitle	= {Proc.\ 4th. Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {532},
  pages		= {70--83},
  year		= {1991},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@Article{	  Arnborg-Courcelle-Proskurowski.ea:93,
  author	= {Stefan Arnborg and Bruno Courcelle and Andrzej
		  Proskurowski and Detlef Seese},
  title		= {An Algebraic Theory of Graph Reduction},
  journal	= {Journal of the ACM},
  volume	= {40},
  pages		= {1134--1164},
  year		= {1993},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Arnborg-Lagergren-Seese:88,
  author	= {Stefan Arnborg and Jens Lagergren and Detlef Seese},
  title		= {Problems Easy for Tree-Decompos\-able Graphs},
  editor	= {T. Lepist{\"o} and A. Salomaa},
  booktitle	= {Automata, Languages and Programming},
  series	= {Lecture Notes in Computer Science},
  volume	= {317},
  pages		= {38--51},
  year		= {1988},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Arnborg-Lagergren-Seese:91,
  author	= {Stefan Arnborg and Jens Lagergren and Detlef Seese},
  title		= {Problems Easy for Tree-Decompos\-able Graphs},
  journal	= {Journal of Algorithms},
  volume	= {12},
  pages		= {308--340},
  year		= {1991},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Arnborg-Proskurowski:85,
  author	= {Stefan Arnborg and Andrzej Proskurowski},
  title		= {Characterization and Recognition of Partial $k$-Trees},
  journal	= {Congressus Numerantium},
  volume	= {47},
  pages		= {69--76},
  year		= {1985},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Arnborg-Proskurowski:86,
  author	= {Stefan Arnborg and Andrzej Proskurowski},
  title		= {Characterization and Recognition of Partial 3-Trees},
  journal	= {SIAM Journal of Alg. and Discrete Methods},
  volume	= {7},
  pages		= {305--314},
  year		= {1986},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Arnborg-Proskurowski:96,
  author	= {Stefan Arnborg and Andrzej Proskurowski},
  title		= {{A Technique for Recognizing Graphs of Bounded Treewidth
		  with Application to Subclasses of Partial 2-Paths}},
  editor	= {Janice E. Cuny and Hartmut Ehrig and Gregor Engels and
		  Grzegorz Rozenberg},
  booktitle	= {Proc.\ 5th Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {1073},
  pages		= {469--486},
  year		= {1996},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@Article{	  Arnborg:85,
  author	= {Stefan Arnborg},
  title		= {Efficient Algorithms for Combinatorial Problems on Graphs
		  with Bounded Decomposability --- {A} Survey},
  journal	= {BIT},
  volume	= {25},
  pages		= {2--33},
  year		= {1985},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Assmann:96,
  author	= {Uwe A{\ss}mann},
  title		= {{On Edge Addition Rewrite Systems and their Relevance to
		  Program Analysis}},
  editor	= {Janice E. Cuny and Hartmut Ehrig and Gregor Engels and
		  Grzegorz Rozenberg},
  booktitle	= {Proc.\ 5th Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {1073},
  pages		= {321--335},
  year		= {1996},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@Book{		  Ausiello-Atzeni:86,
  title		= {Proc.\ Int.\ Conf.\ on database theory},
  editor	= {G. Ausiello and P. Atzeni},
  series	= {Lecture Notes in Computer Science},
  volume	= {243},
  year		= {1986},
  publisher	= {Springer-Verlag},
  added		= {1996-08-02-14-49-29}
}

@Book{		  Avenhaus:95,
  author	= {J. Avenhaus},
  title		= {{Reduktionssysteme. Rechnen und Schlie\ss{}en in
		  gleichunsdefinierten Strukturen}},
  year		= {1995},
  publisher	= {Springer-Verlag},
  address	= {Berlin},
  added		= {1996-03-13-10-09-20}
}

@Article{	  BBaker:78,
  author	= {B.~Baker},
  title		= {Tree Transducers and Tree Languages},
  journal	= {Information and Control},
  volume	= {37},
  number	= {2},
  pages		= {241--266},
  year		= {1978},
  publisher	= {Academic Press},
  added		= {2000-05-23-18-31-23}
}

@TechReport{	  BBartsch:80,
  author	= {B.~Bartsch},
  title		= {Inferenz und Analyse spezieller Graph-Grammatiken f{\"u}r
		  die syntaktische Muster-Erkennung},
  series	= {Arbeitsberichte des IMMD},
  volume	= {13},
  number	= {6},
  year		= {1980},
  institution	= {Friedrich-Alexander-Universit{\"a}t Erlangen-N{\"u}rnberg},
  added		= {2000-05-23-18-31-23}
}

@Article{	  BCourcelle-Senizergues:96,
  author	= {B.~Courcelle and G. S\'{e}nizergues},
  title		= {The obstructions of a minor-closed set of graphs defined
		  by a hyperedge-replacement graph grammar can be
		  constructed},
  journal	= {Discrete Mathematics},
  year		= {1996},
  note		= {{ In press}},
  added		= {1998-01-22-10-35-50}
}

@Article{	  BCourcelle:96,
  author	= {B.~Courcelle},
  title		= {The monadic second-order logic of graphs {X}: Linear
		  orders},
  journal	= {Theoretical Computer Science},
  volume	= {160},
  pages		= {87--143},
  year		= {1996},
  added		= {1998-01-22-10-35-50}
}

@PhDThesis{	  BHimmelreich:95,
  author	= {B.~Himmelreich},
  title		= {Spezifikation von Zustand und Dynamik objekt-orientierter
		  Datenbanken durch Graph-Grammatiken},
  year		= {1995},
  school	= {Johannes-Gutenberg-Universit{\"a}t Mainz},
  added		= {2000-05-23-18-31-23}
}

@TechReport{	  BKrieg-Brueckner:94,
  title		= {Programmierung durch Spezifikation und Transformation:
		  Bremer Beitr{\"a}ge zum Verbundprojekt KORSO (1)},
  editor	= {B.~Krieg-Br{\"u}ckner},
  series	= {Informatikberichte},
  number	= {1/94},
  year		= {1994},
  institution	= {Universit{\"a}t Bremen},
  added		= {2000-05-23-18-31-23},
  key		= {Krieg-Brueckner:94}
}

@TechReport{	  BKrieg-Brueckner:94b,
  title		= {Programmierung durch Spezifikation und Transformation:
		  Bremer Beitr{\"a}ge zum Verbundprojekt KORSO (2)},
  editor	= {B.~Krieg-Br{\"u}ckner},
  series	= {Informatikberichte},
  number	= {10/94},
  year		= {1994},
  institution	= {Universit{\"a}t Bremen},
  added		= {2000-05-23-18-31-23},
  key		= {Krieg-Brueckner:94b}
}

@Book{		  BWestfechtel:99,
  author	= {B.~Westfechtel},
  title		= {Graph based Models and Tools for Managing Development
		  Processes},
  series	= {Lecture Notes in Computer Science},
  volume	= {1646},
  year		= {1999},
  publisher	= {Springer-Verlag},
  address	= {Berlin},
  note		= {Venia Legendi Thesis (Habilitation)},
  added		= {2000-05-23-18-31-23}
}

@InProceedings{	  Bailey-Bailey-Fischer:91,
  author	= {Duane A. Bailey and Janice E. Bailey and Charles D.
		  Fischer},
  title		= {Programming with Very Large Graphs},
  editor	= {H. Ehrig and H.-J. Kreowski and G. Rozenberg},
  booktitle	= {Graph Grammars and Their Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {532},
  pages		= {84--97},
  year		= {1991},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Bailey-Cuny-Fischer:91,
  author	= {Duane A. Bailey and Janice E. Cuny and Charles D.
		  Fischer},
  title		= {{Programming with Very Large Graphs}},
  editor	= {Hartmut Ehrig and Hans-J{\"o}rg Kreowski and Grzegorz
		  Rozenberg},
  booktitle	= {Proc.\ 4th. Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {532},
  pages		= {84--97},
  year		= {1991},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Bailey-Cuny:87,
  author	= {Duane A. Bailey and Janice E. Cuny},
  title		= {{Graph Grammar based Specification of Interconnection
		  Structures for Massively Parallel Computation}},
  editor	= {Hartmut Ehrig and Manfred Nagl and Grzegorz Rozenberg and
		  Azriel Rosenfeld},
  booktitle	= {Proc.\ 3rd Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {291},
  pages		= {73--85},
  year		= {1987},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Baker:83,
  author	= {B. S. Baker},
  title		= {Approximation Algorithms for {NP}-Complete Problems on
		  Planar Graphs},
  booktitle	= {Proc. 24th Ann. Symp. on Foundations of Comp. Sci.},
  pages		= {265--273},
  year		= {1983},
  organization	= {IEEE Comp. Society},
  address	= {Los Angeles},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Banach:96,
  author	= {Richard Banach},
  title		= {{The Contractum in Algebraic Graph Rewriting}},
  editor	= {Janice E. Cuny and Hartmut Ehrig and Gregor Engels and
		  Grzegorz Rozenberg},
  booktitle	= {Proc.\ 5th Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {1073},
  pages		= {16--26},
  year		= {1996},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Barendregt-vanEekelen-Glaubert.ea:87,
  author	= {Hendrik Barendregt and Marko {van Eekelen} and John
		  Glaubert and Richard Kennaway and Rinus Plasmeijer and
		  Ronan Sleep},
  title		= {Term Graph Rewriting},
  editor	= {J. W. de Bakker and A. J. Nijman and P. C. Treleaven},
  booktitle	= {PARLE'87},
  series	= {Lecture Notes in Computer Science},
  volume	= {259},
  pages		= {141--158},
  year		= {1987},
  added		= {1996-03-13-10-09-20}
}

@PhDThesis{	  Barthelmann:90,
  author	= {Klaus Barthelmann},
  title		= {Graphgrammatikalische Hilfsmittel zur Beschreibung
		  verteilter Systeme},
  year		= {1990},
  school	= {Erlangen},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Barthelmann:91,
  author	= {Klaus Barthelmann},
  title		= {{Describing G{\"o}ttler's Operational Graph Grammars with
		  Pushouts}},
  editor	= {Hartmut Ehrig and Hans-J{\"o}rg Kreowski and Grzegorz
		  Rozenberg},
  booktitle	= {Proc.\ 4th. Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {532},
  pages		= {98--112},
  year		= {1991},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Barthelmann:96,
  author	= {Klaus Barthelmann},
  title		= {{Process Specification and Verification}},
  editor	= {Janice E. Cuny and Hartmut Ehrig and Gregor Engels and
		  Grzegorz Rozenberg},
  booktitle	= {Proc.\ 5th Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {1073},
  pages		= {225--239},
  year		= {1996},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Bartsch-Spoerl:83,
  author	= {B. Bartsch-Sp{\"o}rl},
  title		= {{Grammatical Inference of Graph Grammars for Syntactic
		  Pattern Recognition}},
  editor	= {Hartmut Ehrig and Manfred Nagl and Grzegorz Rozenberg},
  booktitle	= {Proc.\ 2nd Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {153},
  pages		= {1--7},
  year		= {1983},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Batini-DAtri:79,
  author	= {Carlo Batini and Alessandro D'Atri},
  title		= {{Rewriting Systems as a Tool for Relational Data Base
		  Design}},
  editor	= {Volker Claus and Hartmut Ehrig and Grzegorz Rozenberg},
  booktitle	= {Proc.\ 1st Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science and Biology},
  series	= {Lecture Notes in Computer Science},
  volume	= {73},
  pages		= {139--154},
  year		= {1979},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Batini-DAtri:81,
  author	= {C. Batini and A. D'Atri},
  title		= {Schema Hypergraphs: {A} Formalism to Investigate Logical
		  Data Base Design},
  editor	= {H. Noltemeier},
  booktitle	= {Graph-Theoretic Concepts in Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {100},
  pages		= {177--194},
  year		= {1981},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Bauderon-Courcelle:86,
  author	= {Michel Bauderon and Bruno Courcelle},
  title		= {An Algebraic Formalism for Graphs},
  editor	= {P. {Franchi-Zannettacci}},
  booktitle	= {CAAP '86},
  series	= {Lecture Notes in Computer Science},
  volume	= {214},
  pages		= {74--84},
  year		= {1986},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Bauderon-Courcelle:87,
  author	= {Michel Bauderon and Bruno Courcelle},
  title		= {Graph Expressions and Graph Rewriting},
  journal	= {Mathematical Systems Theory},
  volume	= {20},
  pages		= {83--127},
  year		= {1987},
  added		= {1996-03-13-10-09-20}
}

@TechReport{	  Bauderon-Jacquet:96,
  author	= {M. Bauderon and H. Jacquet},
  title		= {Categorical product as a generic graph rewriting
		  mechanism},
  number	= {1166--97},
  year		= {1996},
  institution	= {LaBRI, University of Bordeaux},
  note		= {Submitted to J.A.C.T.S},
  added		= {1998-01-22-10-35-50}
}

@InProceedings{	  Bauderon:89,
  author	= {Michel Bauderon},
  title		= {On Systems of Equations Defining Infinite Graphs},
  editor	= {J. van Leeuwen},
  booktitle	= {Graph-Theoretic Concepts in Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {344},
  pages		= {54--73},
  year		= {1989},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Bauderon:91,
  author	= {Michel Bauderon},
  title		= {Infinite Hypergraphs {I}. {B}asic Properties},
  journal	= {Theoretical Computer Science},
  volume	= {82},
  pages		= {177--214},
  year		= {1991},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Bauderon:91b,
  author	= {Michel Bauderon},
  title		= {{General Solution to a System of Recursive Equations on
		  Hypergraphs}},
  editor	= {Hartmut Ehrig and Hans-J{\"o}rg Kreowski and Grzegorz
		  Rozenberg},
  booktitle	= {Proc.\ 4th. Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {532},
  pages		= {113--126},
  year		= {1991},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@Article{	  Bauderon:92,
  author	= {Michel Bauderon},
  title		= {Infinite Hypergraphs {II}. {S}ystems of Recursive
		  Equations},
  journal	= {Theoretical Computer Science},
  volume	= {103},
  pages		= {165--190},
  year		= {1992},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Bauderon:95,
  author	= {Michel Bauderon},
  title		= {A Uniform Approach to Graph Rewriting: The Pullback
		  Approach},
  editor	= {Manfred Nagl},
  booktitle	= {Graph-Theoretic Concepts in Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {1017},
  pages		= {101--115},
  year		= {1995},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Bauderon:96,
  author	= {Michel Bauderon},
  title		= {{A Category-Theoretical Approach to Vertex Replacement:
		  The Generation of Infinite Graphs}},
  editor	= {Janice E. Cuny and Hartmut Ehrig and Gregor Engels and
		  Grzegorz Rozenberg},
  booktitle	= {Proc.\ 5th Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {1073},
  pages		= {27--37},
  year		= {1996},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@PhDThesis{	  Beeck:95,
  author	= {Beeck, M. von der},
  title		= {{Ein Kontrollmodell f{\"u}r die Strukturierte Analyse}},
  year		= {1995},
  address	= {RWTH Aachen},
  type		= {Dissertation},
  school	= {Lehrstuhl f{\"u}r Informatik III},
  added		= {1996-11-28-18-33-07}
}

@Book{		  Berge:73,
  author	= {Claude Berge},
  title		= {Graphs and Hypergraphs},
  year		= {1973},
  publisher	= {North Holland},
  address	= {Amsterdam},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Berman-Shannon:84,
  author	= {F. Berman and G. Shannon},
  title		= {Edge Grammars: Decidability Results and Formal Language
		  Issues},
  booktitle	= {Proc. of the 22nd Allerton Conference on Communication,
		  Control and Computing},
  pages		= {921--930},
  year		= {1984},
  address	= {Urbana, Illinois},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Bern-Lawler-Wong:85,
  author	= {M. W. Bern and E. L. Lawler and A. L. Wong},
  title		= {Why Certain Subgraph Computations Require only Linear
		  Time},
  booktitle	= {Proc. 26th Symp. on Foundations of Computer Science (FOCS
		  '85)},
  pages		= {117--125},
  year		= {1985},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Bern-Lawler-Wong:87,
  author	= {M. W. Bern and E. L. Lawler and A. L. Wong},
  title		= {Linear Time Computation of Optimal Subgraphs of
		  Decomposable Graphs},
  journal	= {Journal of Algorithms},
  volume	= {8},
  pages		= {216--235},
  year		= {1987},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Berthold-Fischer:97,
  author	= {M. Berthold and I. Fischer},
  title		= { Modelling Neural Networks with Graph Transformation
		  Systems},
  booktitle	= {Proceedings of the 1997 IEEE International Joint
		  Conference on Neural Networks},
  volume	= {1},
  pages		= {275--280},
  year		= {1997},
  month		= jun,
  address	= {Houston, Texas},
  added		= {1999-02-08-15-43-38}
}

@Manual{	  Beyer:92,
  author	= {Martin Beyer},
  title		= {{AGG 1.0 -- Kurzanleitung}},
  year		= {1992},
  school	= {Berlin},
  added		= {1996-03-13-10-09-20}
}

@Manual{	  Beyer:92b,
  author	= {Martin Beyer},
  title		= {{AGG 1.0 -- Tutorial}},
  year		= {1992},
  school	= {Berlin},
  added		= {1996-03-13-10-09-20}
}

@Manual{	  Beyer:93,
  author	= {Martin Beyer},
  title		= {{AGG}, An Algebraic Graph Grammar System, User's Manual},
  year		= {1993},
  school	= {Technical University of Berlin},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Billaud-Lafon-Yves.ea:90,
  author	= {Michel Billaud and Pierre Lafon and Yves and M\'etivier
		  and Eric Sopena},
  title		= {Graph Rewriting Systems with Priorities},
  editor	= {M. Nagl},
  booktitle	= {Graph-Theoretic Concepts in Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {411},
  pages		= {94--106},
  year		= {1990},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Bloedel-Wankmueller:87,
  author	= {V. Bl{\"o}del and F. Wankm{\"u}ller},
  title		= {Graph Languages Defined by Systems of Forbidden
		  Structures: {A} Survey},
  editor	= {H. G\"ottler and H. J. Schneider},
  booktitle	= {Graph-Theoric Concepts in Computer Science, International
		  Workshop WG'87},
  series	= {Lecture Notes in Computer Science},
  number	= {314},
  pages		= {46--58},
  year		= {1987},
  publisher	= {Springer-Verlag},
  added		= {1996-04-16-07-34-15}
}

@TechReport{	  Blostein-Fahmy-Grbavec:95,
  author	= {D. Blostein and H. Fahmy and A. Grbavec},
  title		= {Practical use of graph rewriting},
  number	= {95-373},
  year		= {1995},
  institution	= {Queen's University},
  address	= {CDN},
  added		= {1996-08-02-14-49-29}
}

@InProceedings{	  Blostein-Fahmy-Grbavec:96,
  author	= {Dorothea Blostein and Hoda Fahmy and Ann Grbavec},
  title		= {{Issues in the Practical Use of Graph Rewriting}},
  editor	= {Janice E. Cuny and Hartmut Ehrig and Gregor Engels and
		  Grzegorz Rozenberg},
  booktitle	= {Proc.\ 5th Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {1073},
  pages		= {38--55},
  year		= {1996},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@TechReport{	  Bodlaender:86,
  author	= {Hans L. Bodlaender},
  title		= {Classes of Graphs with Bounded Tree-Width},
  number	= {RUU-CS-86-22},
  year		= {1986},
  institution	= {Utrecht},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Bodlaender:88,
  author	= {Hans L. Bodlaender},
  title		= {Dynamic Programming on Graphs with Bounded Tree-width},
  editor	= {T. Lepist{\"o} and A. Salomaa},
  booktitle	= {Automata, Languages and Programming},
  series	= {Lecture Notes in Computer Science},
  volume	= {317},
  pages		= {105--118},
  year		= {1988},
  added		= {1996-03-13-10-09-20}
}

@TechReport{	  Bodlaender:88b,
  author	= {H. L. Bodlaender},
  title		= {{NC}--algorithms for graphs with small tree-width},
  number	= {RUU--CS--88--4},
  year		= {1988},
  institution	= {Rijskuniversiteit Utrecht, vakgroep informatica},
  type		= {Report},
  added		= {1996-03-28-11-35-01}
}

@InCollection{	  Bodlaender:88c,
  author	= {H. L. Bodlaender},
  title		= {Polynomial algorithms for graph isomorphism and chromatic
		  index on partial $k$-trees},
  editor	= {R. Karlsson and A. Lingas and G. Rozenberg},
  booktitle	= {Proc. {SWAT} 88},
  series	= {Lecture Notes in Computer Science},
  volume	= {318},
  pages		= {223--232},
  year		= {1988},
  publisher	= {Springer},
  added		= {1996-03-28-11-35-01}
}

@InProceedings{	  Bodlaender:89,
  author	= {Hans L. Bodlaender},
  title		= {{NC}-Algorithms for Graphs with Small Tree-Width},
  editor	= {J. van Leeuwen},
  booktitle	= {Graph-Theoretic Concepts in Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {344},
  pages		= {1--10},
  year		= {1989},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Boehm-Ehrig-Hummert.ea:87,
  author	= {Paul Boehm and Hartmut Ehrig and Udo Hummert and Michael
		  L{\"o}we},
  title		= {{Towards Distributed Graph-Grammars}},
  editor	= {Hartmut Ehrig and Manfred Nagl and Grzegorz Rozenberg and
		  Azriel Rosenfeld},
  booktitle	= {Proc.\ 3rd Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {291},
  pages		= {86--98},
  year		= {1987},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Boehm-Fonio-Habel:85,
  author	= {Paul Boehm and Harald-Reto Fonio and Annegret Habel},
  title		= {Amalgamation of Graph Transformations with Applications to
		  Synchronization},
  editor	= {H. Ehrig and C. Floyd and M. Nivat and J. Thatcher},
  booktitle	= {Mathematical Foundations of Software Development},
  series	= {Lecture Notes in Computer Science},
  volume	= {185},
  pages		= {267--283},
  year		= {1985},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Boehm-Fonio-Habel:87,
  author	= {Paul Boehm and Harald-Reto Fonio and Annegret Habel},
  title		= {Amalgamation of Graph Transformations: {A} Synchronization
		  Mechanism},
  journal	= {Journal of Computer and System Sciences},
  volume	= {34},
  pages		= {377--408},
  year		= {1987},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Boehm-Jacopini:66,
  author	= {C. B{\"o}hm and G. Jacopini},
  title		= {Flow Diagrams, Turing Machines, and Languages with only
		  Two Formation Rules},
  journal	= {Comm. ACM},
  volume	= {19},
  pages		= {366--371},
  year		= {1966},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Boer-Lindenmayer:87,
  author	= {Martin J. M. De Boer and Aristid Lindenmayer},
  title		= {{Map OL-Systems with Edge Label Control: Comparison of
		  Marker and Cyclic Systems}},
  editor	= {Hartmut Ehrig and Manfred Nagl and Grzegorz Rozenberg and
		  Azriel Rosenfeld},
  booktitle	= {Proc.\ 3rd Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {291},
  pages		= {378--392},
  year		= {1987},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Boer:91,
  author	= {Martin J. M. De Boer},
  title		= {{Construction of Map OL-Systems for Developmental
		  Sequences of Plant Cell Layers}},
  editor	= {Hartmut Ehrig and Hans-J{\"o}rg Kreowski and Grzegorz
		  Rozenberg},
  booktitle	= {Proc.\ 4th. Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {532},
  pages		= {127--143},
  year		= {1991},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@Booklet{	  Bossut-Warin:86,
  author	= {F. Bossut and F. Warin},
  title		= {Rationalit\'e et reconnaissabilit\'e dans les graphes
		  acycliques},
  year		= {1986},
  address	= {Univ. of Lille},
  howpublished	= {Ph.D.},
  added		= {1996-03-28-11-35-01}
}

@TechReport{	  Bottreau-Metivier:97,
  author	= {A. Bottreau and Y. M\'etivier},
  title		= {Normal forms of graph rewriting, minor searching : two
		  applications of enumeration},
  year		= {1997},
  institution	= {LaBRI},
  note		= {submitted},
  added		= {1998-01-22-10-35-50}
}

@InProceedings{	  Brandenburg-Chytil:91,
  author	= {Franz J. Brandenburg and Michal P. Chytil},
  title		= {{Cycle Chain Code Picture Languages}},
  editor	= {Hartmut Ehrig and Hans-J{\"o}rg Kreowski and Grzegorz
		  Rozenberg},
  booktitle	= {Proc.\ 4th. Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {532},
  pages		= {157--173},
  year		= {1991},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@Misc{		  Brandenburg-Skodinis:94,
  author	= {Franz J. Brandenburg and Konstantin Skodinis},
  title		= {Confluent {eNCE Graph} Grammars and Neighborhood
		  Preserving Normal Form},
  year		= {1994},
  added		= {1996-03-13-10-09-20}
}

@Unpublished{	  Brandenburg-Skodinis:95,
  ATTENTION	= {newer record added: May 25, 1999},
  author	= {Franz J. Brandenburg and Kostantin Skodinis},
  title		= {Graph Automata for Linear Graph Languages},
  year		= {1995},
  note		= {Submitted for publication},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Brandenburg-Skodinis:96,
  author	= {Brandenburg, Franz Joseph and Skodinis, Kostantin},
  title		= {Graph Automata for Linear Languages},
  editor	= {J. Cuny and H. Ehrig and G. Engels and G. Rozenberg},
  booktitle	= {Proc. Fifth Intl. Workshop on Graph Grammars and Their
		  Application to Comp. Sci.},
  series	= {Lecture Notes in Computer Science},
  volume	= {1073},
  pages		= {336--350},
  year		= {1996},
  publisher	= {Springer},
  added		= {1996-08-02-16-55-34}
}

@InProceedings{	  Brandenburg-Skodinis:96b,
  author	= {Franz J. Brandenburg and K. Skodinis},
  title		= {{Graph Automata for Linear Graph Languages}},
  editor	= {Janice E. Cuny and Hartmut Ehrig and Gregor Engels and
		  Grzegorz Rozenberg},
  booktitle	= {Proc.\ 5th Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {1073},
  pages		= {336--350},
  year		= {1996},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InCollection{	  Brandenburg:83,
  author	= {Franz J. Brandenburg},
  title		= {On the Complexity of the Membership Problem of Graph
		  Grammars},
  editor	= {M. Nagl and J. Perl},
  booktitle	= {Graph-Theoretic Concepts in Computer Science},
  pages		= {40--49},
  year		= {1983},
  publisher	= {Trauner Verlag},
  address	= {Linz},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Brandenburg:87,
  author	= {Franz J. Brandenburg},
  title		= {{On Partially Ordered Graph-Grammars}},
  editor	= {Hartmut Ehrig and Manfred Nagl and Grzegorz Rozenberg and
		  Azriel Rosenfeld},
  booktitle	= {Proc.\ 3rd Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {291},
  pages		= {99--111},
  year		= {1987},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Brandenburg:88,
  author	= {Franz J. Brandenburg},
  title		= {On Polynomial Time Graph Grammars},
  editor	= {R. Cori and M. Wirsing},
  booktitle	= {STACS 88},
  series	= {Lecture Notes in Computer Science},
  volume	= {294},
  pages		= {227--236},
  year		= {1988},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Brandenburg:91,
  author	= {Franz J. Brandenburg},
  title		= {The Equivalence of Boundary and Confluent Graph Grammars
		  on Graph Languages of Bounded Degree},
  editor	= {R. V. Book},
  booktitle	= {Rewriting Techniques and Applications},
  series	= {Lecture Notes in Computer Science},
  volume	= {488},
  pages		= {312--322},
  year		= {1991},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Brandenburg:91b,
  author	= {Franz J. Brandenburg},
  title		= {{Layout Graph Grammars: The Placement Approach}},
  editor	= {Hartmut Ehrig and Hans-J{\"o}rg Kreowski and Grzegorz
		  Rozenberg},
  booktitle	= {Proc.\ 4th. Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {532},
  pages		= {144--156},
  year		= {1991},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@Book{		  Breu:91,
  author	= {R. Breu},
  title		= {Algebraic Specification Techniques in Object-Oriented
		  Programming Environments},
  series	= {Lecture Notes in Computer Science},
  volume	= {562},
  year		= {1991},
  publisher	= {Springer-Verlag},
  added		= {1996-08-02-14-49-29}
}

@Article{	  Buechi:60,
  author	= {J. B{\"u}chi},
  title		= {Weak Second Order Logic and Finite Automata},
  journal	= {Z. Math. Logik, Grundlag. Math.},
  volume	= {5},
  pages		= {66--62},
  year		= {1960},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Bunke-Glauser-Tran:91,
  author	= {Horst Bunke and T. Glauser and T.-H. Tran},
  title		= {{An Efficient Implementation of Graph Grammars based on
		  the RETE Matching Algorithm}},
  editor	= {Hartmut Ehrig and Hans-J{\"o}rg Kreowski and Grzegorz
		  Rozenberg},
  booktitle	= {Proc.\ 4th. Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {532},
  pages		= {174--189},
  year		= {1991},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Bunke-Haller:90,
  author	= {Horst Bunke and B. Haller},
  title		= {A Parser for Context Free Plex Grammars},
  editor	= {M. Nagl},
  booktitle	= {Graph-Theoretic Concepts in Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {411},
  pages		= {136--150},
  year		= {1990},
  added		= {1996-03-13-10-09-20}
}

@PhDThesis{	  Bunke:79,
  author	= {Bunke, H.},
  title		= {{Sequentielle und parallele Graph-Grammatiken}},
  year		= {1979},
  address	= {F.A.U. Erlangen},
  type		= {Dissertation},
  school	= {Inst. f. math. Maschinen und Datenverarb. (IMMD)},
  added		= {1996-11-28-18-33-07}
}

@InProceedings{	  Bunke:79b,
  author	= {Horst Bunke},
  title		= {{Programmed Graph Grammars}},
  editor	= {Volker Claus and Hartmut Ehrig and Grzegorz Rozenberg},
  booktitle	= {Proc.\ 1st Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science and Biology},
  series	= {Lecture Notes in Computer Science},
  volume	= {73},
  pages		= {155--166},
  year		= {1979},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@Article{	  Bunke:82,
  author	= {Horst Bunke},
  title		= {On the Generative Power of Sequential and Parallel
		  Programmed Graph Grammars},
  journal	= {Computing},
  volume	= {29},
  pages		= {89--112},
  year		= {1982},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Bunke:82b,
  author	= {H. Bunke},
  title		= {Attributed programmed graph grammars and their application
		  to schematic diagram interpretation},
  journal	= {IEEE pattern analysis and machine intelligence},
  volume	= {4},
  number	= {6},
  pages		= {574--582},
  year		= {1982},
  publisher	= {IEEE Computer Society Press},
  added		= {1996-08-02-14-49-29}
}

@InProceedings{	  Bunke:83,
  author	= {Horst Bunke},
  title		= {{Graph Grammars as a Generative Tool in Image
		  Understanding}},
  editor	= {Hartmut Ehrig and Manfred Nagl and Grzegorz Rozenberg},
  booktitle	= {Proc.\ 2nd Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {153},
  pages		= {8--19},
  year		= {1983},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@PhDThesis{	  C-AKrapp:98,
  author	= {C.-A.~Krapp},
  title		= {An adaptable Environment for the Management of Development
		  Processes},
  year		= {1998},
  school	= {Fakult{\"a}t f{\"u}r Mathematik, Naturwissenschaften und
		  Informatik, Rheinisch-Westf{\"a}lische Technische
		  Hochschule Aachen},
  note		= {Published by Augustinus-Verlag Aachen},
  added		= {2000-05-23-18-31-23}
}

@InProceedings{	  CBatini-GdiBattista-GSantucci:94,
  author	= {C.~Batini and G.~di~Battista and G.~Santucci},
  title		= {Multilevel Schema Integration},
  editor	= {R.~Elmasri and V.~Kouramajian and B.~Thalheim},
  booktitle	= {12th International Conference on the Entity Relationship
		  Approach},
  series	= {Lecture Notes in Computer Science},
  volume	= {823},
  pages		= {327--338},
  year		= {1994},
  publisher	= {Springer-Verlag},
  address	= {Berlin},
  added		= {2000-05-23-18-31-23}
}

@Article{	  CCook:74,
  author	= {C.~Cook},
  title		= {First Order Graph Grammars},
  journal	= {SIAM Journal of Computing},
  volume	= {3},
  number	= {1},
  pages		= {90--99},
  year		= {1974},
  added		= {2000-05-23-18-31-23}
}

@Article{	  CGottlieb-AFurtado:79,
  author	= {C.~Gottlieb and A.~Furtado},
  title		= {Data Schemata based on Directed Graphs},
  journal	= {International Journal of Computer and Information
		  Sciences},
  volume	= {8},
  number	= {1},
  pages		= {39--74},
  year		= {1979},
  publisher	= {Plenum Press},
  added		= {2000-05-23-18-31-23}
}

@Article{	  CKim-TEJeong:99,
  author	= {C.~Kim and T.E.~Jeong},
  title		= {HRNCE Grammars: A Hypergraph Generating System with an
		  eNCE way of Rewriting},
  journal	= {Theoretical Computer Science},
  volume	= {223},
  number	= {1/2},
  year		= {1999},
  month		= {Jul},
  added		= {2000-05-23-18-31-23}
}

@InProceedings{	  Carlyle-Greibach-Paz:87,
  author	= {Jack W. Carlyle and Sheila A. Greibach and Azaria Paz},
  title		= {{Complexity of Pattern Generation via Planar Parallel
		  Binary Fission/Fusion Grammars}},
  editor	= {Hartmut Ehrig and Manfred Nagl and Grzegorz Rozenberg and
		  Azriel Rosenfeld},
  booktitle	= {Proc.\ 3rd Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {291},
  pages		= {515--533},
  year		= {1987},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Castellani-Montanari:83,
  author	= {Ilaria Castellani and Ugo Montanari},
  title		= {{Graph Grammars for Distributed Systems}},
  editor	= {Hartmut Ehrig and Manfred Nagl and Grzegorz Rozenberg},
  booktitle	= {Proc.\ 2nd Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {153},
  pages		= {20--38},
  year		= {1983},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Catalano-Gnesi-Montanari:79,
  author	= {Alfonso Catalano and Stefania Gnesi and Ugo Montanari},
  title		= {{Shortest Path Problems and Tree Grammars: An Algebraic
		  Framework}},
  editor	= {Volker Claus and Hartmut Ehrig and Grzegorz Rozenberg},
  booktitle	= {Proc.\ 1st Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science and Biology},
  series	= {Lecture Notes in Computer Science},
  volume	= {73},
  pages		= {167--179},
  year		= {1979},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Caucal:91,
  author	= {D. Caucal},
  title		= {An Application of Graph Grammars to the Elimination of
		  Redundancy from Fonctions Defined by Schemes},
  editor	= {H. Erhig and H.-J. Kreowski and G. Rozenberg},
  booktitle	= {Graph Grammars and Their Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  number	= {532},
  pages		= {190--206},
  year		= {1991},
  publisher	= {Springer-Verlag},
  added		= {1996-04-16-07-34-15}
}

@InProceedings{	  Caucal:91b,
  author	= {Didier Caucal},
  title		= {{An Application of Graph Grammars to the Elimination of
		  Redundancy from Functions Defined by Schemes}},
  editor	= {Hartmut Ehrig and Hans-J{\"o}rg Kreowski and Grzegorz
		  Rozenberg},
  booktitle	= {Proc.\ 4th. Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {532},
  pages		= {190--206},
  year		= {1991},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@Article{	  Caucal:92,
  author	= {Didier Caucal},
  title		= {On the Regular Structure of Prefix Rewriting},
  journal	= {Theoretical Computer Science},
  volume	= {106},
  pages		= {61--86},
  year		= {1992},
  added		= {1996-03-13-10-09-20}
}

@Book{		  Chartrand-Oellermann:93,
  author	= {Gary Chartrand and Ortrud R. Oellermann},
  title		= {Applied and Algorithmic Graph Theory},
  year		= {1993},
  publisher	= {McGraw-Hill},
  address	= {New York},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Chen:91,
  author	= {Tien Chi Chen},
  title		= {{Graphic Equivalence and Computer Optimization}},
  editor	= {Hartmut Ehrig and Hans-J{\"o}rg Kreowski and Grzegorz
		  Rozenberg},
  booktitle	= {Proc.\ 4th. Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {532},
  pages		= {207--220},
  year		= {1991},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@Proceedings{	  Claus-Ehrig-Rozenberg:79,
  title		= {Graph Grammars and Their Application to Computer Science
		  and Biology},
  editor	= {Volker Claus and Hartmut Ehrig and Grzegorz Rozenberg},
  series	= {Lecture Notes in Computer Science},
  volume	= {73},
  year		= {1979},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Collectif:91,
  author	= {Collectif},
  title		= {Panel Discussion: The Use of Graph Grammars in
		  Application},
  editor	= {H. Ehrig and H.-J. Kreowski and G. Rozenberg},
  booktitle	= {Graph Grammars and Their Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  number	= {532},
  pages		= {41--60},
  year		= {1991},
  publisher	= {Springer-Verlag},
  added		= {1996-04-16-07-34-15}
}

@TechReport{	  Conrad-Gajewski-Holl-Biniasz.ea:95,
  author	= {Mirko Conrad and Magdalena Gajewski and Rainer
		  Holl-Biniasz and Michael Rudolf and Jochen Demuth and
		  Stephan Weber and Reiko Heckel and J{\"u}rgen M{\"u}ller
		  and Gabriele Taentzer and Annika Wagner},
  title		= {{Graphische Spezifikation ausgew\"ahlter Teile von AGG --
		  einem algebraischen Graphgrammatiksystem}},
  year		= {1995},
  institution	= {Technical University of Berlin},
  type		= {Technical Report 95-7},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Cook:74,
  author	= {C. R. Cook},
  title		= {First Order Graph Grammars},
  journal	= {SIAM Journal on Computing},
  volume	= {3},
  pages		= {90--99},
  year		= {1974},
  added		= {1996-03-13-10-09-20}
}

@TechReport{	  Corradini-Drewes:97,
  author	= {Corradini, A. and Drewes, F.},
  title		= {({C}yclic) Term Graph Rewriting is adequate for Rational
		  Parallel Term Rewriting},
  number	= {TR-97-14},
  year		= {1997},
  institution	= {Dipartimento di Informatica, Pisa},
  added		= {1997-09-02-14-33-22}
}

@InCollection{	  Corradini-Ehrig-Heckel.ea:97,
  author	= {Corradini, Andrea and Ehrig, Hartmut and Heckel, Reiko and
		  Korff, Martin and L\"owe, Michael and Ribeiro, Leila and
		  Wagner, Anika},
  title		= {Algebraic Approaches to Graph Transformation - Part {I}:
		  {S}ingle Pushout Approach and Comparison with Double
		  Pushout Approach},
  editor	= {Rozenberg, G.},
  booktitle	= {Handbook of Graph Grammars and Computing by Graph
		  Transformation. Vol.\ {I}: Foundations},
  chapter	= {4},
  pages		= {247--312},
  year		= {1997},
  publisher	= {World Scientific},
  added		= {1997-03-17-16-11-19}
}

@Unpublished{	  Corradini-Ehrig-Loewe.ea:95,
  author	= {Andrea Corradini and Hartmut Ehrig and Michael L{\"o}we
		  and Ugo and Montanari and Julia Padberg},
  title		= {Typed Graph Grammars and Their Adjunction with Categories
		  of Derivations},
  year		= {1995},
  note		= {Submitted for publication},
  added		= {1996-03-13-10-09-20}
}

@Unpublished{	  Corradini-Ehrig-Loewe.ea:95b,
  author	= {Andrea Corradini and Hartmut Ehrig and Michael L{\"o}we
		  and Ugo and Montanari and Francesca Rossi},
  title		= {Algebraic Approach to Graph Transformations {II}: Models
		  of Computation in the Double Pushout Approach},
  year		= {1995},
  note		= {Submitted for publication},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Corradini-Ehrig-Loewe.ea:96,
  author	= {Corradini, Andrea and Ehrig, Hartmut and L{\"o}we, Martin
		  and Montanari, Ugo and Rossi, Francesca},
  title		= {An Event Structure Semantics for Graph Grammars with
		  Prallel Productions},
  editor	= {J. Cuny and H. Ehrig and G. Engels and G. Rozenberg},
  booktitle	= {Proc. Fifth Intl. Workshop on Graph Grammars and Their
		  Application to Comp. Sci.},
  series	= {Lecture Notes in Computer Science},
  volume	= {1073},
  pages		= {240--256},
  year		= {1996},
  publisher	= {Springer},
  added		= {1996-08-02-16-55-34}
}

@InProceedings{	  Corradini-Ehrig-Loewe.ea:96b,
  author	= {Andrea Corradini and Hartmut Ehrig and Michael L{\"o}we
		  and Ugo Montanari and Julia Padberg},
  title		= {{The Category of Typed Graph Grammars and its Adjunctions
		  with Categories of Derivations}},
  editor	= {Janice E. Cuny and Hartmut Ehrig and Gregor Engels and
		  Grzegorz Rozenberg},
  booktitle	= {Proc.\ 5th Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {1073},
  pages		= {56--74},
  year		= {1996},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Corradini-Ehrig-Loewe.ea:96c,
  author	= {Andrea Corradini and Hartmut Ehrig and Michael L{\"o}we
		  and Ugo Montanari and Francesca Rossi},
  title		= {{An Event Structure Semantics for Graph Grammars with
		  Parallel Productions}},
  editor	= {Janice E. Cuny and Hartmut Ehrig and Gregor Engels and
		  Grzegorz Rozenberg},
  booktitle	= {Proc.\ 5th Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {1073},
  pages		= {240--256},
  year		= {1996},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Corradini-Ehrig-Montanari.ea:96,
  author	= {Corradini, Andrea and Ehrig, Hartmut and Montanari, Ugo
		  and Padberg, Julia},
  title		= {The Category of Typed Graph Grammars and its Adjunction
		  with Categories of Derivations},
  editor	= {J. Cuny and H. Ehrig and G. Engels and G. Rozenberg},
  booktitle	= {Proc. Fifth Intl. Workshop on Graph Grammars and Their
		  Application to Comp. Sci.},
  series	= {Lecture Notes in Computer Science},
  volume	= {1073},
  pages		= {56--74},
  year		= {1996},
  publisher	= {Springer},
  added		= {1996-08-02-16-55-34}
}

@InProceedings{	  Corradini-Gadducci:97,
  author	= {Corradini, A. and Gadducci, F.},
  title		= {A 2-Categorical Presentation of Term Graph Rewriting},
  booktitle	= {Proceedings CTCS'97},
  series	= {LNCS},
  volume	= {1290},
  year		= {1997},
  publisher	= {Springer Verlag},
  added		= {1998-01-22-10-35-50}
}

@Unpublished{	  Corradini-Gadducci:97b,
  author	= {Corradini, A. and Gadducci, F.},
  title		= {An Algebraic Presentation of Term Graphs, via PS-Monoidal
		  Categories},
  year		= {1997},
  note		= {Submitted for publication. Available at {\tt
		  http://www.di.unipi.it/$\sim$gadducci/papers/aptg.ps}},
  added		= {1998-01-22-10-35-50}
}

@InCollection{	  Corradini-Heckel:95,
  author	= {Andrea Corradini and Reiko Heckel},
  title		= {A Compositional Approach to Structuring and Refinement of
		  Typed Graph Grammars},
  editor	= {A. Corradini and U. Montanari},
  booktitle	= {SEGRAGRA'95, Joint COMPUGRAPH/SEMAGRAPH Workshop on Graph
		  Rewriting and Computation},
  journal	= {Electronic Notes in Theoretical Computer Science},
  volume	= {2},
  year		= {1995},
  publisher	= {Elsevier},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Corradini-Montanari-Rossi.ea:91,
  author	= {Andrea Corradini and Ugo Montanari and Francesca Rossi and
		  Hartmut Ehrig and Michael L{\"o}we},
  title		= {{Graph Grammars and Logic Programming}},
  editor	= {Hartmut Ehrig and Hans-J{\"o}rg Kreowski and Grzegorz
		  Rozenberg},
  booktitle	= {Proc.\ 4th. Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {532},
  pages		= {221--237},
  year		= {1991},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InCollection{	  Corradini-Montanari-Rossi.ea:97,
  author	= {Corradini, Andrea and Montanari, Ugo and Rossi, Francesca
		  and Ehrig, Hartmut and Heckel, Reiko and L\"owe, Michael},
  title		= {Algebraic Approaches to Graph Transformation - Part {I}:
		  {B}asic Concepts and Double Pushout Approach},
  editor	= {Rozenberg, G.},
  booktitle	= {Handbook of Graph Grammars and Computing by Graph
		  Transformation. Vol.\ {I}: Foundations},
  chapter	= {3},
  pages		= {163--246},
  year		= {1997},
  publisher	= {World Scientific},
  added		= {1997-03-17-16-11-19}
}

@InCollection{	  Corradini-Montanari-Rossi.ea:97b,
  author	= {Corradini, A. and Montanari, U. and Rossi, F. and Ehrig,
		  H. and Heckel, R. and L{\"o}we, M.},
  title		= {Algebraic Approaches to Graph Transformation {I}: Basic
		  Concepts and Double Pushout Approach},
  editor	= {Rozenberg, G.},
  booktitle	= {Handbook of Graph Grammars and Computing by Graph
		  transformation, Volume 1: Foundations},
  year		= {1997},
  publisher	= {World Scientific},
  added		= {1998-01-22-10-35-50}
}

@InProceedings{	  Corradini-Rossi-Parisi-Presicce:91,
  author	= {Andrea Corradini and Francesca Rossi and Francesco
		  {Parisi-Presicce}},
  title		= {Logic Programming as Hypergraph Rewriting},
  booktitle	= {CAAP '91},
  series	= {Lecture Notes in Computer Science},
  volume	= {493},
  pages		= {275--295},
  year		= {1991},
  added		= {1996-03-13-10-09-20}
}

@InCollection{	  Corradini-Rossi:93,
  author	= {Andrea Corradini and Francesca Rossi},
  title		= {A New Term Graph Rewriting Formalism: Hyperedge
		  Replacement Jungle Rewriting},
  editor	= {Ronan Sleep and Rinus Plasmeijer and Marko {van Eekelen}},
  booktitle	= {Term Graph Rewriting: Theory and Practice},
  pages		= {101--115},
  year		= {1993},
  publisher	= {John Wiley},
  address	= {New York},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Corradini-Rossi:93b,
  author	= {Andrea Corradini and Francesca Rossi},
  title		= {Hyperedge Replacement Jungle Rewriting for Term-Rewriting
		  Systems and Logic Programming},
  journal	= {Theoretical Computer Science},
  volume	= {109},
  pages		= {7--48},
  year		= {1993},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Corradini-Rossi:96,
  author	= {Andrea Corradini and Francesca Rossi},
  title		= {{Synchronized Composition of Graph Grammar Productions}},
  editor	= {Janice E. Cuny and Hartmut Ehrig and Gregor Engels and
		  Grzegorz Rozenberg},
  booktitle	= {Proc.\ 5th Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {1073},
  pages		= {257--270},
  year		= {1996},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Corradini-Wolz:94,
  author	= {Andrea Corradini and Dietmar Wolz},
  title		= {Jungle Rewriting: an Abstract Description of a Lazy
		  Narrowing Machine},
  editor	= {Hans J{\"u}rgen Schneider and Hartmut Ehrig},
  booktitle	= {Graph Transformations in Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {776},
  pages		= {119--137},
  year		= {1994},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Courcelle-Engelfriet-Rozenberg:91,
  author	= {Bruno Courcelle and Joost Engelfriet and Grzegorz
		  Rozenberg},
  title		= {{Context-Free Handle-Rewriting Hypergraph Grammars}},
  editor	= {Hartmut Ehrig and Hans-J{\"o}rg Kreowski and Grzegorz
		  Rozenberg},
  booktitle	= {Proc.\ 4th. Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {532},
  pages		= {253--268},
  year		= {1991},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@Article{	  Courcelle-Engelfriet-Rozenberg:93,
  author	= {Bruno Courcelle and Joost Engelfriet and Grzegorz
		  Rozenberg},
  title		= {Handle-Rewriting Hypergraph Grammars},
  journal	= {Journal of Computer and System Sciences},
  volume	= {46},
  pages		= {218--270},
  year		= {1993},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Courcelle-Engelfriet:95,
  author	= {Bruno Courcelle and Joost Engelfriet},
  title		= {A Logical Characterization of the Sets of Hypergraphs
		  Defined by Hyperedge Replacement Grammars},
  journal	= {Mathematical Systems Theory},
  volume	= {28},
  pages		= {515--552},
  year		= {1995},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Courcelle-Franchi-Zannettacci:82,
  author	= {Bruno Courcelle and P. {Franchi-Zannettacci}},
  title		= {Attribute Grammars and Recursive Program Schemes {I} and
		  {II}},
  journal	= {Theoretical Computer Science},
  volume	= {17},
  pages		= {163--191, 235--257},
  year		= {1982},
  added		= {1996-03-13-10-09-20}
}

@TechReport{	  Courcelle-Mosbah:90,
  author	= {Bruno Courcelle and Mohamed Mosbah},
  title		= {Monadic Second Order Evaluations on Tree-Decomposable
		  Graphs},
  number	= {LaBRI TR 90--110},
  year		= {1990},
  institution	= {Univ. Bordeaux},
  added		= {1996-03-28-11-35-01}
}

@Article{	  Courcelle-Mosbah:93,
  author	= {Bruno Courcelle and Mohamed Mosbah},
  title		= {Monadic Second-Order Evaluations on Tree-Decomposable
		  Graphs},
  journal	= {Theoretical Computer Science},
  volume	= {109},
  pages		= {49--82},
  year		= {1993},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Courcelle-Senizergues:96,
  author	= {Bruno Courcelle and G. S{\'e}nizergues},
  title		= {{The Obstructions of a Minor-Closed Set of Graphs Defined
		  by Hyperedge Replacement can be Constructed}},
  editor	= {Janice E. Cuny and Hartmut Ehrig and Gregor Engels and
		  Grzegorz Rozenberg},
  booktitle	= {Proc.\ 5th Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {1073},
  pages		= {351--367},
  year		= {1996},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@Article{	  Courcelle:83,
  author	= {Bruno Courcelle},
  title		= {Fundamental Properties of Infinite Trees},
  journal	= {Theoretical Computer Science},
  volume	= {25},
  pages		= {95--169},
  year		= {1983},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Courcelle:86,
  author	= {Bruno Courcelle},
  title		= {Equivalence and Transformations of Regular Systems.
		  Applications to Recursive Program Schemes and Grammars},
  journal	= {Theoretical Computer Science},
  volume	= {42},
  pages		= {1--22},
  year		= {1986},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Courcelle:87,
  author	= {Bruno Courcelle},
  title		= {An Axiomatic Definition of Context-Free Rewriting and its
		  Application to {NLC} Graph Grammars},
  journal	= {Theoretical Computer Science},
  volume	= {55},
  pages		= {141--181},
  year		= {1987},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Courcelle:87b,
  author	= {Bruno Courcelle},
  title		= {{A Representation of Graphs by Algebraic Expressions and
		  its Use for Graph Rewriting Systems}},
  editor	= {Hartmut Ehrig and Manfred Nagl and Grzegorz Rozenberg and
		  Azriel Rosenfeld},
  booktitle	= {Proc.\ 3rd Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {291},
  pages		= {112--132},
  year		= {1987},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Courcelle:87c,
  author	= {Bruno Courcelle},
  title		= {{On Context-Free Sets of Graphs and Their Monadic
		  Second-Order Theory}},
  editor	= {Hartmut Ehrig and Manfred Nagl and Grzegorz Rozenberg and
		  Azriel Rosenfeld},
  booktitle	= {Proc.\ 3rd Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {291},
  pages		= {133--146},
  year		= {1987},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Courcelle:88,
  author	= {Bruno Courcelle},
  title		= {An Axiomatic Definition of Context-Free Rewriting and its
		  Application to {NLC} Grammars},
  editor	= {R. Cori and M. Wirsing},
  booktitle	= {STACS 88},
  series	= {Lecture Notes in Computer Science},
  volume	= {294},
  pages		= {237--247},
  year		= {1988},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Courcelle:88b,
  author	= {Bruno Courcelle},
  title		= {Some Applications of Logic, of Universal Algebra,and of
		  Category Theory to the Theory of Graph Transformations},
  journal	= {Bull. EATCS},
  volume	= {36},
  pages		= {161--218},
  year		= {1988},
  added		= {1996-03-13-10-09-20}
}

@TechReport{	  Courcelle:88c,
  author	= {Bruno Courcelle},
  title		= {The monadic second--order logic of graphs, {III}:
		  tree--width, forbidden minors and complexity issues},
  year		= {1988},
  institution	= {Universit\'e Bordeaux 1},
  type		= {Preprint},
  added		= {1996-03-28-11-35-01}
}

@InProceedings{	  Courcelle:89,
  author	= {Bruno Courcelle},
  title		= {The Monadic Second-Order Logic of Graphs: Definable Sets
		  of Finite Graphs},
  editor	= {J. van Leeuwen},
  booktitle	= {Graph-Theoretic Concepts in Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {344},
  pages		= {30--53},
  year		= {1989},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Courcelle:89b,
  author	= {Bruno Courcelle},
  title		= {The Monadic Second-Order Logic of Graphs {II}: Infinite
		  Graphs of Bounded Width},
  journal	= {Mathematical Systems Theory},
  volume	= {21},
  pages		= {187--221},
  year		= {1989},
  added		= {1996-03-13-10-09-20}
}

@InCollection{	  Courcelle:90,
  author	= {Bruno Courcelle},
  title		= {Graph Rewriting: An Algebraic and Logic Approach},
  editor	= {J. van Leeuwen},
  booktitle	= {Handbook of Theoretical Computer Science},
  volume	= {{B}},
  pages		= {193--242},
  year		= {1990},
  publisher	= {Elsevier},
  address	= {Amsterdam},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Courcelle:90b,
  author	= {Bruno Courcelle},
  title		= {The Monadic Second-Order Logic of Graphs {I}: Recognizable
		  Sets of Finite Graphs},
  journal	= {Information and Computation},
  volume	= {85},
  pages		= {12--75},
  year		= {1990},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Courcelle:90c,
  author	= {Bruno Courcelle},
  title		= {The Monadic Second-Order Logic of Graphs {IV}:
		  Definability Properties of Equational Graphs},
  journal	= {Annals of Pure and Applied Logic},
  volume	= {49},
  pages		= {193--255},
  year		= {1990},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Courcelle:91,
  author	= {Bruno Courcelle},
  title		= {Recursive Queries and Context-Free Graph Grammars},
  journal	= {Theoretical Computer Science},
  volume	= {78},
  pages		= {217--244},
  year		= {1991},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Courcelle:91b,
  author	= {Bruno Courcelle},
  title		= {The Monadic Second-Order Logic of Graphs {V}: On Closing
		  the Gap between Definability and Recognizability},
  journal	= {Theoretical Computer Science},
  volume	= {80},
  pages		= {153--202},
  year		= {1991},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Courcelle:91c,
  author	= {Bruno Courcelle},
  title		= {{Graphs as Relational Structures: An Algebraic and Logical
		  Approach}},
  editor	= {Hartmut Ehrig and Hans-J{\"o}rg Kreowski and Grzegorz
		  Rozenberg},
  booktitle	= {Proc.\ 4th. Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {532},
  pages		= {238--252},
  year		= {1991},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Courcelle:91d,
  author	= {Bruno Courcelle},
  title		= {{The Logical Expression of Graph Properties (Abstract)}},
  editor	= {Hartmut Ehrig and Hans-J{\"o}rg Kreowski and Grzegorz
		  Rozenberg},
  booktitle	= {Proc.\ 4th. Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {532},
  pages		= {38--40},
  year		= {1991},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Courcelle:92,
  author	= {Bruno Courcelle},
  title		= {Monadic Second Order Definable Graph Transductions},
  editor	= {J.-C. Raoult},
  booktitle	= {CAAP'92},
  series	= {Lecture Notes in Computer Science},
  volume	= {581},
  pages		= {124--144},
  year		= {1992},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Courcelle:92b,
  author	= {Bruno Courcelle},
  title		= {The Monadic Second-Order Logic of Graphs {III}:
		  Tree-Decompositions, Minors and Complexity Issues},
  journal	= {{RAIRO} Theoretical Informatics and Applications},
  volume	= {26},
  pages		= {257--286},
  year		= {1992},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Courcelle:92c,
  author	= {Bruno Courcelle},
  title		= {The Monadic Second-Order Logic of Graphs {VII}: Graphs as
		  Relational Structures},
  journal	= {Theoretical Computer Science},
  volume	= {101},
  pages		= {3--33},
  year		= {1992},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Courcelle:93,
  author	= {Bruno Courcelle},
  title		= {Context-Free Graph Grammars: Separating Vertex Replacement
		  from Hyperedge Replacement},
  editor	= {Z. \'Esik},
  booktitle	= {Fundamentals of Computation Theory},
  series	= {Lecture Notes in Computer Science},
  volume	= {710},
  pages		= {181--193},
  year		= {1993},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Courcelle:93b,
  author	= {Bruno Courcelle},
  title		= {Graph Grammars, Monadic Second-Order Logic And The Theory
		  of Graph Minors},
  editor	= {N. Robertson and P. Seymour},
  booktitle	= {Graph Structure Theory},
  series	= {Contemporary Mathematics},
  volume	= {147},
  pages		= {565--590},
  year		= {1993},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Courcelle:93c,
  author	= {Courcelle, Bruno},
  title		= {Graph Grammars, Monadic Second-Order Logic and the Theory
		  of Graph Minors},
  journal	= {Contemporary Mathematics},
  volume	= {147},
  pages		= {565--589},
  year		= {1993},
  added		= {1997-04-01-17-37-10}
}

@Article{	  Courcelle:94,
  author	= {Bruno Courcelle},
  title		= {Monadic Second-Order Definable Graph Transductions: {A}
		  Survey},
  journal	= {Theoretical Computer Science},
  volume	= {126},
  pages		= {53--75},
  year		= {1994},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Courcelle:94b,
  author	= {Bruno Courcelle},
  title		= {Recognizable Sets of Graphs: Equivalent Definitions and
		  Closure Properties},
  journal	= {Mathematical Structures in Computer Science},
  volume	= {4},
  pages		= {1--32},
  year		= {1994},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Courcelle:95,
  author	= {Bruno Courcelle},
  title		= {Structural Properties of Context-Free Sets of Graphs
		  Generated by Vertex Replacement},
  journal	= {Information and Computation},
  volume	= {116},
  pages		= {275--293},
  year		= {1995},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Courcelle:95b,
  author	= {Bruno Courcelle},
  title		= {The Monadic Second-Order Logic of Graphs {VI}: On Several
		  Representations of Graphs by Relational Structures},
  journal	= {Discrete Applied Mathematics},
  year		= {1995},
  note		= {To appear},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Courcelle:95c,
  author	= {Bruno Courcelle},
  title		= {The Monadic Second-Order Logic of Graphs {IX}: Machines
		  and Their Behaviours},
  journal	= {Theoretical Computer Science},
  volume	= {151},
  pages		= {125--162},
  year		= {1995},
  added		= {1996-03-28-11-35-01}
}

@InCollection{	  Courcelle:96,
  ATTENTION	= {newer record added: Mar 17, 1997},
  author	= {Bruno Courcelle},
  title		= {The Expression of Graph Properties and Graph
		  Transformations in Monadic Second-Order Logic},
  editor	= {G. Rozenberg},
  booktitle	= {Handbook of Graph Rewriting. Vol.\ {I}: Foundations},
  year		= {1996},
  publisher	= {World Scientific},
  note		= {To appear},
  added		= {1996-03-28-11-35-01}
}

@InProceedings{	  Courcelle:96b,
  author	= {Courcelle, Bruno},
  title		= {The Definition in Monadic Second-Order Logig of Modular
		  Decompositions of Ordered Graphs},
  editor	= {J. Cuny and H. Ehrig and G. Engels and G. Rozenberg},
  booktitle	= {Proc. Fifth Intl. Workshop on Graph Grammars and Their
		  Application to Comp. Sci.},
  series	= {Lecture Notes in Computer Science},
  volume	= {1073},
  pages		= {487--501},
  year		= {1996},
  publisher	= {Springer},
  added		= {1996-08-02-16-55-34}
}

@Article{	  Courcelle:96c,
  author	= {B. Courcelle},
  title		= {Basic notions of Universal Algebra for Language Theory and
		  Graph Grammars},
  journal	= {Theoretical Computer Science},
  volume	= {163},
  pages		= {1--54},
  year		= {1996},
  added		= {1998-01-22-10-35-50}
}

@InProceedings{	  Courcelle:96d,
  author	= {Bruno Courcelle},
  title		= {{The Definition in Monadic Second-Order Logic of Modular
		  Decompositions of Ordered Graphs}},
  editor	= {Janice E. Cuny and Hartmut Ehrig and Gregor Engels and
		  Grzegorz Rozenberg},
  booktitle	= {Proc.\ 5th Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {1073},
  pages		= {487--501},
  year		= {1996},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InCollection{	  Courcelle:97,
  author	= {Courcelle, Bruno},
  title		= {The Expression of Graph Properties and Graph
		  Transformations in Monadic Second-Order Logic},
  editor	= {Rozenberg, G.},
  booktitle	= {Handbook of Graph Grammars and Computing by Graph
		  Transformation. Vol.\ {I}: Foundations},
  chapter	= {5},
  pages		= {313--400},
  year		= {1997},
  publisher	= {World Scientific},
  added		= {1997-03-17-16-11-19}
}

@InProceedings{	  Courcelle:97b,
  author	= {B. Courcelle},
  title		= {On the expression of graph properties in some fragments of
		  monadic second-order logic},
  editor	= {N. Immerman and P.Kolaitis},
  booktitle	= {Descriptive complexity and finite models},
  volume	= {31},
  pages		= {33--62},
  year		= {1997},
  month		= {June},
  publisher	= {DIMACS Series in Discrete Mathematics and Theoretical
		  Computer Sciences},
  added		= {1998-01-22-10-35-50}
}

@Article{	  CulikII-Lindenmayer:76,
  author	= {K. {Culik {II}} and A. Lindenmayer},
  title		= {Parallel Rewriting on Graphs and Multidimensional
		  Development},
  journal	= {Int. Journ. of General Systems},
  volume	= {3},
  pages		= {53--66},
  year		= {1976},
  added		= {1996-03-13-10-09-20}
}

@Article{	  CulikII-Wood:79,
  author	= {K. {Culik {II}} and D. Wood},
  title		= {A Mathematical Investigation of Propagating Graph {OL}
		  Systems},
  journal	= {Information and Control},
  volume	= {43},
  pages		= {50--82},
  year		= {1979},
  added		= {1996-03-13-10-09-20}
}

@Proceedings{	  Cuny-Ehrig-Engels.ea:96,
  title		= {Graph Grammars and Their Application to Computer Science},
  editor	= {Cuny, Janice and Ehrig, Hartmut and Engels, Gregor and
		  Rozenberg, Grzegorz},
  series	= {Lecture Notes in Computer Science},
  volume	= {1073},
  year		= {1996},
  publisher	= {Springer},
  added		= {1996-08-02-17-14-32}
}

@Article{	  DFarber-RGriswold-JPolonsky:64,
  author	= {D.~Farber and R.~Griswold and J.~Polonsky},
  title		= {SNOBOL: a String Manipulation Language},
  journal	= {Journal of the ACM},
  volume	= {11},
  pages		= {21--30},
  year		= {1964},
  added		= {2000-05-23-18-31-23}
}

@InProceedings{	  DJanin-IWalukiewicz:96,
  author	= {D.~Janin and I.~Walukiewicz},
  title		= {On the expressive completeness of the modal mu-calculus
		  w.r.t. monadic second order logic},
  booktitle	= {Proc.\ CONCUR'96},
  series	= {Lecture Notes in Computer Science},
  volume	= {1119},
  year		= {1996},
  added		= {1998-01-22-10-35-50}
}

@InProceedings{	  DJanin:97,
  author	= {D.~Janin},
  title		= {Automata, tableaus and a reduction theorem for fixpoint
		  calculi in arbitrary complete lattices},
  booktitle	= {IEEE Symp. on Logic in Computer Science},
  year		= {1997},
  added		= {1998-01-22-10-35-50}
}

@InProceedings{	  DJanin:97b,
  author	= {D.~Janin},
  title		= {When the satisfiability problem for fixpoint expressions
		  in complete ordered sets is simple},
  booktitle	= {CSL'97},
  year		= {1997},
  note		= {Submitted to the proceedings},
  added		= {1998-01-22-10-35-50}
}

@TechReport{	  DPlump:97,
  author	= {D.~Plump},
  title		= {Termination of Graph Rewriting is undecidable},
  series	= {Informatikberichte},
  number	= {7/97},
  year		= {1997},
  institution	= {Universit{\"a}t Bremen},
  added		= {2000-05-23-18-31-23}
}

@Article{	  DRosenkrantz:69,
  author	= {D.~Rosenkrantz},
  title		= {Programmed Grammars and Classes of Formal Languages},
  journal	= {Journal of the ACM},
  volume	= {16},
  pages		= {107--131},
  year		= {1969},
  added		= {2000-05-23-18-31-23}
}

@TechReport{	  DWeber:78,
  author	= {D.~Weber},
  title		= {Daten-Graphen und deren Transformation: Ein Konzept zur
		  Spezifikation von Daten-Typen},
  series	= {Arbeitsberichte des IMMD},
  volume	= {11},
  number	= {8},
  year		= {1978},
  institution	= {Friedrich-Alexander-Universit{\"a}t Erlangen-N{\"u}rnberg},
  added		= {2000-05-23-18-31-23}
}

@InProceedings{	  Dassow-Habel-Taubenberger:95,
  ATTENTION	= {newer record added: Jul 30, 1996},
  author	= {J{\"u}rgen Dassow and Annegret Habel and Stefan
		  Taubenberger},
  title		= {Chain-Code Pictures and Collages Generated by Hyperedge
		  Replacement},
  booktitle	= {Graph Grammars and Their Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  year		= {1995},
  note		= {To appear},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Dassow-Habel-Taubenberger:96,
  author	= {J{\"u}rgen Dassow and Annegret Habel and Stefan
		  Taubenberger},
  title		= {{Chain-Code Pictures and Collages Generated by Hyperedge
		  Replacement}},
  editor	= {Janice E. Cuny and Hartmut Ehrig and Gregor Engels and
		  Grzegorz Rozenberg},
  booktitle	= {Proc.\ 5th Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {1073},
  pages		= {412--427},
  year		= {1996},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@Book{		  Dassow-Paun:89,
  author	= {J. Dassow and G. Paun},
  title		= {Regulated rewriting in formal language theory},
  series	= {EATCS Monographs},
  volume	= {18},
  year		= {1989},
  publisher	= {Springer-Verlag},
  added		= {1996-08-02-14-49-29}
}

@Article{	  Dassow:89,
  author	= {J{\"u}rgen Dassow},
  title		= {Graph-Theoretic Properties and Chain Code Picture
		  Languages},
  journal	= {Journal of Information Processing and Cybernetics EIK},
  volume	= {25},
  pages		= {423--433},
  year		= {1989},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  David-Drewes-Kreowski:93,
  author	= {Gnanamalar David and Frank Drewes and Hans-J{\"o}rg
		  Kreowski},
  title		= {Hyperedge Replacement with Rendezvous},
  editor	= {P. Jouannaud},
  booktitle	= {Theory and Practice of Software Development},
  series	= {Lecture Notes in Computer Science},
  volume	= {668},
  pages		= {167--181},
  year		= {1993},
  added		= {1996-03-13-10-09-20}
}

@Book{		  DeMarco:79,
  author	= {T. DeMarco},
  title		= {Structured Analysis and System Specification},
  year		= {1979},
  publisher	= {Yourdon Press, New York, NY},
  added		= {1996-08-02-14-49-29}
}

@Article{	  Degano-Montanari:87,
  author	= {P. Degano and Ugo Montanari},
  title		= {A Model of Distributed Systems based of Graph Rewriting},
  journal	= {Journal of the ACM},
  volume	= {34},
  pages		= {411--449},
  year		= {1987},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Dehnert-Franck-Streng:75,
  author	= {Ernst Dehnert and Reinhold Franck and W. Streng},
  title		= {{PLAN2D} --- Towards a Two-Dimensional Programming
		  Language},
  series	= {Lecture Notes in Computer Science},
  volume	= {26},
  pages		= {202--213},
  year		= {1975},
  added		= {1996-03-13-10-09-20}
}

@Article{	  DellaVigna-Ghezzi:78,
  ATTENTION	= {newer record added: Jul 30, 1996},
  author	= {Pierluigi {Della Vigna} and Carlo Ghezzi},
  title		= {Context-Free Graph Grammars},
  journal	= {Information and Control},
  volume	= {37},
  pages		= {207--233},
  year		= {1978},
  added		= {1996-03-13-10-09-20}
}

@Article{	  DellaVigna-Ghezzi:78b,
  author	= {P. {Della Vigna} and C. Ghezzi},
  title		= {Context Free Graph Grammars},
  journal	= {Information and Control},
  volume	= {37},
  pages		= {207--233},
  year		= {1978},
  added		= {1996-03-28-11-35-01}
}

@InProceedings{	  Derk-DeBrunner:96,
  author	= {Derk, M.D. and DeBrunner, L.S.},
  title		= {Reconfiguration Graph Grammars for Massively Parallel,
		  Fault Tolerant Computers},
  editor	= {J. Cuny and H. Ehrig and G. Engels and G. Rozenberg},
  booktitle	= {Proc. Fifth Intl. Workshop on Graph Grammars and Their
		  Application to Comp. Sci.},
  series	= {Lecture Notes in Computer Science},
  volume	= {1073},
  pages		= {185--195},
  year		= {1996},
  publisher	= {Springer},
  added		= {1996-08-02-16-55-34}
}

@InProceedings{	  Derk-DeBrunner:96b,
  author	= {M. D. Derk and L. S. DeBrunner},
  title		= {{Reconfiguration Graph Grammar for Massively Parallel,
		  Fault Tolerant Computers}},
  editor	= {Janice E. Cuny and Hartmut Ehrig and Gregor Engels and
		  Grzegorz Rozenberg},
  booktitle	= {Proc.\ 5th Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {1073},
  pages		= {185--195},
  year		= {1996},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@Book{		  Diestel:90,
  author	= {R. Diestel},
  title		= {Graph Decompositions: {A} Study in Infinite Graph Theory},
  year		= {1990},
  publisher	= {Oxford University Press},
  address	= {Oxford},
  added		= {1996-03-28-11-35-01}
}

@TechReport{	  Ditt-Kreowski-Weber:88,
  author	= {Wolfgang Ditt and Hans-J{\"o}rg Kreowski and H. Weber},
  title		= {A Graph Grammar Approach to Conceptual Database Schemata
		  Definition},
  number	= {247/88},
  year		= {1988},
  institution	= {University of Dortmund},
  type		= {Technical Report},
  added		= {1996-03-13-10-09-20}
}

@TechReport{	  Doerr:92,
  author	= {H. D{\"o}rr},
  title		= {Monitoring with Graph-Grammars as formal operational
		  Models},
  number	= {92-19-27},
  year		= {1992},
  institution	= {Institut fur Informatik, Freie Universit{\"a}t Berlin,
		  Germany},
  added		= {1996-04-16-07-34-15}
}

@InProceedings{	  Doerr:95,
  author	= {Heiko D{\"o}rr},
  title		= {Bypass Strong {V}-Structures and Find an Isomorphic
		  Labelled Subgraph in Linear Time},
  editor	= {W. {Mayr, Ernst} and Gunter Schmidt and Gottfried
		  Tinhofer},
  booktitle	= {Graph-Theoretic Concepts in Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {903},
  pages		= {305--318},
  year		= {1995},
  added		= {1996-03-13-10-09-20}
}

@Book{		  Doerr:95b,
  author	= {Heiko D{\"o}rr},
  title		= {Efficient Graph Rewriting and its Implementation},
  series	= {Lecture Notes in Computer Science},
  volume	= {922},
  year		= {1995},
  publisher	= {Springer-Verlag},
  address	= {Berlin},
  note		= {Doctoral dissertation},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Does-Lindenmayer:83,
  author	= {Mark de Does and Aristid Lindenmayer},
  title		= {{Algorithms for the Generation and Drawing of Maps
		  Representing Cell Clones}},
  editor	= {Hartmut Ehrig and Manfred Nagl and Grzegorz Rozenberg},
  booktitle	= {Proc.\ 2nd Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {153},
  pages		= {39--57},
  year		= {1983},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@Article{	  Doner:70,
  author	= {J. Doner},
  title		= {Tree Acceptors and Some of Their Applications},
  journal	= {Journal of Computer and System Sciences},
  volume	= {4},
  pages		= {406--451},
  year		= {1970},
  added		= {1996-03-13-10-09-20}
}

@TechReport{	  Drewes-Engelfriet:96,
  author	= {Drewes, Frank and Engelfriet, Joost},
  title		= {Decidability of the Finiteness of Ranges of Tree
		  Transductions},
  number	= {9/96},
  year		= {1996},
  institution	= {Univ.\ Bremen},
  type		= {Report},
  added		= {1998-01-22-10-35-50}
}

@Article{	  Drewes-Habel-Kreowski.ea:93,
  author	= {Frank Drewes and Annegret Habel and Hans-J{\"o}rg Kreowski
		  and Stefan Taubenberger},
  title		= {A Sketch of Collage Grammars},
  journal	= {Bulletin of the {EATCS}},
  volume	= {50},
  pages		= {209--219},
  year		= {1993},
  added		= {1996-03-13-10-09-20}
}

@TechReport{	  Drewes-Habel-Kreowski.ea:93b,
  author	= {Frank Drewes and Annegret Habel and Hans-J{\"o}rg Kreowski
		  and Stefan Taubenberger},
  title		= {Generating self-affine fractals by collage grammars},
  number	= {3/93},
  year		= {1993},
  institution	= {Univ. Bremen},
  type		= {Report},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Drewes-Habel-Kreowski.ea:94,
  author	= {Frank Drewes and Annegret Habel and Hans-J{\"o}rg Kreowski
		  and Stefan Taubenberger},
  title		= {Generating self-affine fractals by collage grammars},
  editor	= {G. Rozenberg and A. Salomaa},
  booktitle	= {Proc. Developments in Language Theory 93. At the
		  Crossroads of Mathematics, Computer Science and Biology},
  pages		= {278--289},
  year		= {1994},
  publisher	= {World Scientific},
  note		= {Long version in {\it Theoretical Computer Science} 145},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Drewes-Habel-Kreowski.ea:95,
  author	= {Frank Drewes and Annegret Habel and Hans-J{\"o}rg Kreowski
		  and Stefan Taubenberger},
  title		= {Generating Self-Affine Fractals by Collage Grammars},
  journal	= {Theoretical Computer Science},
  volume	= {145},
  pages		= {159--187},
  year		= {1995},
  added		= {1996-03-13-10-09-20}
}

@InCollection{	  Drewes-Habel-Kreowski:96,
  ATTENTION	= {newer record added: Mar 17, 1997},
  author	= {Frank Drewes and Annegret Habel and Hans-J{\"o}rg
		  Kreowski},
  title		= {Hyperedge Replacement Graph Grammars},
  editor	= {G. Rozenberg},
  booktitle	= {Handbook of Graph Transformations. Vol.\ {I}: Foundations},
  year		= {1996},
  publisher	= {World Scientific},
  note		= {To appear},
  added		= {1996-03-13-10-09-20}
}

@InCollection{	  Drewes-Habel-Kreowski:97,
  author	= {Drewes, Frank and Habel, Annegret and Kreowski,
		  Hans-J\"org},
  title		= {Hyperedge Replacement Graph Grammars},
  editor	= {Rozenberg, G.},
  booktitle	= {Handbook of Graph Grammars and Computing by Graph
		  Transformation. Vol.\ {I}: Foundations},
  chapter	= {2},
  pages		= {95--162},
  year		= {1997},
  publisher	= {World Scientific},
  added		= {1997-03-17-16-11-19}
}

@InProceedings{	  Drewes-Kreowski-Kuske:92,
  author	= {Frank Drewes and Hans-J{\"o}rg Kreowski and S. Kuske},
  title		= {Hyperedge Replacement: {A} Basis for Efficient Graph
		  Algorithms},
  editor	= {M. Beyer and H. Ehrig and M. L{\"o}we},
  booktitle	= {Computing by Graph Transformation ({COMPUGRAPH}) ---
		  Survey, Results, and Applications},
  year		= {1992},
  note		= {Project brochure},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Drewes-Kreowski-Lapoire:97,
  author	= {Drewes, Frank and Kreowski, Hans-J\"org and Lapoire,
		  Denis},
  title		= {Criteria to Disprove Context-Freeness of Collage
		  Languages},
  editor	= {Chlebus, B.S. and Czaja, L.},
  booktitle	= {Proc.\ Fundamentals of Computation Theory {XI}},
  series	= {Lecture Notes in Computer Science},
  volume	= {1279},
  pages		= {169--178},
  year		= {1997},
  added		= {1997-09-01-16-46-57}
}

@InProceedings{	  Drewes-Kreowski-Schwabe:96,
  author	= {Frank Drewes and Hans-J{\"o}rg Kreowski and Nils Schwabe},
  title		= {{COLLAGE-ONE}: {A} System for Evaluation and Visualisation
		  of Collage Grammars},
  booktitle	= {Proc. 4th International Conference on Computer Graphics \&
		  Image Processing GKPO'96},
  series	= {Machine Graphics \& Vision},
  volume	= {5},
  pages		= {393--402},
  year		= {1996},
  publisher	= {Polish Academy of Sciences},
  address	= {Warsaw, Poland},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Drewes-Kreowski:91,
  author	= {Frank Drewes and Hans-J{\"o}rg Kreowski},
  title		= {{A Note on Hyperedge Replacement}},
  editor	= {Hartmut Ehrig and Hans-J{\"o}rg Kreowski and Grzegorz
		  Rozenberg},
  booktitle	= {Proc.\ 4th. Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {532},
  pages		= {1--11},
  year		= {1991},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@Article{	  Drewes-Kreowski:96,
  author	= {Frank Drewes and Hans-J{\"o}rg Kreowski},
  title		= {({U}n-)Decidability of Geometric Properties of Pictures
		  Generated by Collage Grammars},
  journal	= {Fundamenta Informaticae},
  volume	= {25},
  pages		= {295--325},
  year		= {1996},
  added		= {1996-06-06-08-59-00}
}

@TechReport{	  Drewes:90,
  author	= {F. Drewes},
  title		= {Parsing ordered graphs generated by hyperedge
		  replacement},
  number	= {10/90},
  year		= {1990},
  institution	= {Univ. Bremen},
  type		= {Report},
  added		= {1996-03-13-10-09-20}
}

@TechReport{	  Drewes:90b,
  author	= {F. Drewes},
  title		= {Unique decompositions of hypergraphs},
  number	= {14/90},
  year		= {1990},
  institution	= {Univ. Bremen},
  type		= {Report},
  added		= {1996-03-13-10-09-20}
}

@TechReport{	  Drewes:91,
  author	= {F. Drewes},
  title		= {Recognising $k$--connected hypergraphs in cubic time},
  number	= {3/91},
  year		= {1991},
  institution	= {Univ. Bremen},
  type		= {Report},
  added		= {1996-03-13-10-09-20}
}

@TechReport{	  Drewes:93,
  author	= {Frank Drewes},
  title		= {A lower bound on the growth of functions computed by tree
		  transducers},
  number	= {4/93},
  year		= {1993},
  institution	= {Univ. Bremen},
  type		= {Report},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Drewes:93b,
  author	= {Frank Drewes},
  title		= {{NP}-completeness of $k$-connected hyperedge-replacement
		  languages of order $k$},
  journal	= {Information Processing Letters},
  volume	= {45},
  pages		= {89--94},
  year		= {1993},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Drewes:93c,
  author	= {Frank Drewes},
  title		= {Recognising $k$--connected hypergraphs in cubic time},
  journal	= {Theoretical Computer Science},
  volume	= {109},
  pages		= {83--122},
  year		= {1993},
  added		= {1996-03-13-10-09-20}
}

@TechReport{	  Drewes:93d,
  author	= {Frank Drewes},
  title		= {Transducibility---Symbolic Computation by
		  Tree-Transducers},
  year		= {1993},
  institution	= {Bremen},
  type		= {Technical Report},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Drewes:94,
  author	= {Frank Drewes},
  title		= {A lower bound on the growth of functions computed by tree
		  transductions},
  editor	= {S. Tison},
  booktitle	= {Proc. {CAAP} 94},
  series	= {Lecture Notes in Computer Science},
  volume	= {787},
  pages		= {100--114},
  year		= {1994},
  publisher	= {Springer},
  note		= {Revised version to appear in {\it Fundamenta
		  Informaticae}},
  added		= {1996-03-13-10-09-20}
}

@TechReport{	  Drewes:94b,
  author	= {Frank Drewes},
  title		= {The Use of Tree Transducers to Compute Translations
		  Between Graph Algebras},
  number	= {8/94},
  year		= {1994},
  institution	= {Univ. Bremen},
  type		= {Report},
  added		= {1996-03-13-10-09-20}
}

@InCollection{	  Drewes:95,
  author	= {Frank Drewes},
  title		= {Semirings and Tree-to-Graph-to-Tree Transductions},
  editor	= {A. Corradini and U. Montanari},
  booktitle	= {Proc.\ Joint {COMPUGRAPH/SEMAGRAPH} Workshop on Graph
		  Rewriting and Computation ({SEGRAGRA '95})},
  journal	= {Electronic Notes in Theoretical Computer Science},
  volume	= {2},
  pages		= {8 pages},
  year		= {1995},
  publisher	= {Elsevier Science},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Drewes:96,
  author	= {Frank Drewes},
  title		= {A lower bound on the growth of functions computed by tree
		  transducers},
  journal	= {Fundamenta Informaticae},
  volume	= {26},
  pages		= {267--286},
  year		= {1996},
  note		= {Short version in {LNCS} 787 ({CAAP} 94)},
  added		= {1996-03-13-10-09-20}
}

@Booklet{	  Drewes:96b,
  author	= {Frank Drewes},
  title		= {Computation by Tree Transductions},
  year		= {1996},
  address	= {University of Bremen, Germany},
  howpublished	= {Doctoral dissertation},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Drewes:96c,
  author	= {Frank Drewes},
  title		= {Language Theoretic and Algorithmic Properties of
		  $d$-dimensional Collages and Patterns in a Grid},
  journal	= {Journal of Computer and System Sciences},
  volume	= {53},
  number	= {1},
  pages		= {33--60},
  year		= {1996},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Drewes:96d,
  author	= {Frank Drewes},
  title		= {On the Connectedness of Pictures Defined by Iterated
		  Function Systems},
  editor	= {Dassow, J. and Rozenberg, G. and Salomaa, A.},
  booktitle	= {Proc.\ 2nd Intl.\ Conference on Developments in Language
		  Theory---{A}t the Crossroads of Mathematics, Computer
		  Science and Biology},
  pages		= {289--298},
  year		= {1996},
  publisher	= {World Scientific},
  address	= {Singapore},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Drewes:96e,
  author	= {Frank Drewes},
  title		= {{The Use of Tree Transducers to Compute Translations
		  between Graph Algebras}},
  editor	= {Janice E. Cuny and Hartmut Ehrig and Gregor Engels and
		  Grzegorz Rozenberg},
  booktitle	= {Proc.\ 5th Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {1073},
  pages		= {196--210},
  year		= {1996},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@TechReport{	  Drewes:97,
  author	= {Drewes, Frank},
  title		= {A Characterization of the Sets of Hypertrees Generated by
		  Hyperedge-Replacement Graph Grammars},
  number	= {3/97},
  year		= {1997},
  institution	= {Univ.\ Bremen},
  type		= {Report},
  added		= {1997-06-05-11-19-39}
}

@InProceedings{	  Drewes:97b,
  author	= {Drewes, Frank},
  title		= {On the Generation of Trees by Hyperedge Replacement},
  editor	= {Pr\'{\i}vara, I. and Ru\v{z}i\v{c}ka, P.},
  booktitle	= {Proc.\ Mathematical Foundations of Computer Science 1997},
  series	= {Lecture Notes in Computer Science},
  volume	= {1295},
  pages		= {229--238},
  year		= {1997},
  added		= {1997-09-01-16-46-57}
}

@TechReport{	  EGroetsch-BJahn:76,
  author	= {E.~Gr{\"o}tsch and B.~Jahn},
  title		= {Vergleichende Studie {\"u}ber parallele Ersetzung
		  markierter Graphen. Eine Studie zur Implementierung von
		  Graphgrammatiken unter Verwendung von
		  Assoziativ-Verarbeitung},
  series	= {Arbeitsberichte des IMMD},
  volume	= {9},
  number	= {6},
  year		= {1976},
  institution	= {Friedrich-Alexander-Universit{\"a}t Erlangen-N{\"u}rnberg},
  added		= {2000-05-23-18-31-23}
}

@Book{		  EMayr:92,
  title		= {WG'92: 18th International Workshop on Graph Theoretic
		  Concepts in Computer Science},
  editor	= {E.~Mayr},
  series	= {Lecture Notes in Computer Science},
  volume	= {657},
  year		= {1992},
  publisher	= {Springer-Verlag},
  address	= {Berlin},
  note		= {Continuation of the WG {\em Fachtagung}},
  added		= {2000-05-23-18-31-23}
}

@Article{	  EMoriya:73,
  author	= {E.~Moriya},
  title		= {Some Remarks on State Grammars and Matrix Grammars},
  journal	= {Information and Control},
  volume	= {23},
  number	= {1},
  pages		= {48--57},
  year		= {1973},
  publisher	= {Academic Press},
  added		= {2000-05-23-18-31-23}
}

@Article{	  Early:70,
  author	= {J. Early},
  title		= {An Efficient Context-free Parsing Algorithm},
  journal	= {Communications of the Association for Computing
		  Machinery},
  volume	= {13},
  number	= {2},
  pages		= {94--102},
  year		= {1970},
  added		= {1996-03-28-11-35-01}
}

@InProceedings{	  Ehrenfeucht-Harju-Rozenberg:96,
  author	= {A. Ehrenfeucht and T. Harju and Grzegorz Rozenberg},
  title		= {{Group Based Graph Transformations and Hierarchical
		  Representations of Graphs}},
  editor	= {Janice E. Cuny and Hartmut Ehrig and Gregor Engels and
		  Grzegorz Rozenberg},
  booktitle	= {Proc.\ 5th Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {1073},
  pages		= {502--520},
  year		= {1996},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InCollection{	  Ehrenfeucht-Harju-Rozenberg:97,
  author	= {Ehrenfeucht, A. and Harju, T. and Rozenberg, Grzegorz},
  title		= {2-Structures - a Framework for Decomposition and
		  Transformation of Graphs},
  editor	= {Rozenberg, G.},
  booktitle	= {Handbook of Graph Grammars and Computing by Graph
		  Transformation. Vol.\ {I}: Foundations},
  chapter	= {6},
  pages		= {401--478},
  year		= {1997},
  publisher	= {World Scientific},
  added		= {1997-03-17-16-11-19}
}

@Article{	  Ehrenfeucht-Main-Rozenberg:84,
  author	= {A. Ehrenfeucht and M. Main and Grzegorz Rozenberg},
  title		= {Restrictions on {NLC} Graph Grammars},
  journal	= {Theoretical Computer Science},
  volume	= {31},
  pages		= {211--223},
  year		= {1984},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Ehrich-Lohberger:79,
  author	= {H.-D. Ehrich and V. G. Lohberger},
  title		= {{Constructing Specifications of Abstract Data Types by
		  Replacements}},
  editor	= {Volker Claus and Hartmut Ehrig and Grzegorz Rozenberg},
  booktitle	= {Proc.\ 1st Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science and Biology},
  series	= {Lecture Notes in Computer Science},
  volume	= {73},
  pages		= {180--191},
  year		= {1979},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@Unpublished{	  Ehrig-Engels:95,
  ATTENTION	= {newer record added: Aug 02, 1996},
  author	= {Hartmut Ehrig and Gregor Engels},
  title		= {Pragmatic and Semantic Aspects of a Module Concept for
		  Graph Transformation Systems},
  year		= {1995},
  note		= {Submitted for publication},
  added		= {1996-03-13-10-09-20}
}

@TechReport{	  Ehrig-Engels:95b,
  author	= {H. Ehrig and G. Engels},
  title		= {Towards a module concept for graph transformation system:
		  the software engineering perspective},
  editor	= {G. Valiente Feruglio et al.},
  booktitle	= {Proc. colloq. on graph transf. and its applic. to
		  comp.sc.},
  year		= {1995},
  institution	= {Universitat de les Illes Balears},
  address	= {Palma de Mallorca,Mar94},
  added		= {1996-08-02-14-49-29}
}

@InProceedings{	  Ehrig-Engels:96,
  author	= {Hartmut Ehrig and Gregor Engels},
  title		= {{Pragmatic and Semantic Aspects of a Module Concept for
		  Graph Transformation Systems}},
  editor	= {Janice E. Cuny and Hartmut Ehrig and Gregor Engels and
		  Grzegorz Rozenberg},
  booktitle	= {Proc.\ 5th Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {1073},
  pages		= {137--154},
  year		= {1996},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@Article{	  Ehrig-Habel-Kreowski.ea:91,
  author	= {Hartmut Ehrig and Annegret Habel and Hans-J{\"o}rg
		  Kreowski and Francesco {Parisi-Presicce}},
  title		= {Parallelism and Concurrency in High Level Replacement
		  Systems},
  journal	= {Mathematical Structures in Computer Science},
  volume	= {1},
  pages		= {361--404},
  year		= {1991},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Ehrig-Habel-Kreowski.ea:91b,
  author	= {Hartmut Ehrig and Annegret Habel and Hans-J{\"o}rg
		  Kreowski and Francesco Parisi-Presicce},
  title		= {{From Graph Grammars to High Level Replacement Systems}},
  editor	= {Hartmut Ehrig and Hans-J{\"o}rg Kreowski and Grzegorz
		  Rozenberg},
  booktitle	= {Proc.\ 4th. Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {532},
  pages		= {269--291},
  year		= {1991},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@Article{	  Ehrig-Habel-Kreowski:92,
  author	= {Hartmut Ehrig and Annegret Habel and Hans-J{\"o}rg
		  Kreowski},
  title		= {Introduction to Graph Grammars with Applications to
		  Semantic Networks},
  journal	= {Computers \& Mathematics with Applications},
  volume	= {23 (6-9)},
  pages		= {557--572},
  year		= {1992},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Ehrig-Habel-Rosen:86,
  author	= {Hartmut Ehrig and Annegret Habel and Barry K. Rosen},
  title		= {Concurrent Transformations of Relational Structures},
  journal	= {Fundamenta Informaticae},
  volume	= {IX},
  pages		= {13--50},
  year		= {1986},
  added		= {1996-03-13-10-09-20}
}

@InCollection{	  Ehrig-Habel:83,
  author	= {Hartmut Ehrig and Annegret Habel},
  title		= {Concurrent Transformations of Graphs and Relational
		  Structures},
  booktitle	= {Graph-Theoretic Concepts in Computer Science},
  pages		= {76--88},
  year		= {1983},
  publisher	= {Trauner Verlag},
  address	= {Linz},
  added		= {1996-03-13-10-09-20}
}

@InCollection{	  Ehrig-Habel:86,
  author	= {Hartmut Ehrig and Annegret Habel},
  title		= {Graph Grammars with Application Conditions},
  editor	= {G. Rozenberg and A. Salomaa},
  booktitle	= {The Book of L},
  pages		= {87--100},
  year		= {1986},
  publisher	= {Springer-Verlag},
  address	= {Berlin},
  added		= {1996-03-13-10-09-20}
}

@InCollection{	  Ehrig-Heckel-Korff.ea:96,
  author	= {Hartmut Ehrig and Reiko Heckel and Martin Korff and Leila
		  Ribeiro and Annika Wagner},
  title		= {Algebraic Approach to Graph Transformations 1: Tutorial
		  Introduction and Single-Pushout Approach},
  editor	= {Rozenberg, G.},
  booktitle	= {Handbook of Graph Grammars and Computing by Graph
		  Transformation, Volume 1: Foundations},
  year		= {1996},
  publisher	= {World Scientific},
  added		= {1996-03-13-10-09-20}
}

@InCollection{	  Ehrig-Heckel-Korff.ea:97,
  author	= {Ehrig, H. and Heckel, R. and Korff, M. and L{\"o}we, M.
		  and Ribeiro, L. and Wagner, A. and Corradini, A.},
  title		= {Algebraic Approaches to Graph Transformation {II}: Single
		  Pushout Approach and Comparison with Double Pushout
		  Approach},
  editor	= {Rozenberg, G.},
  booktitle	= {The Handbook of Graph Grammars and Computing by Graph
		  Transformation, Volume 1: Foundations},
  year		= {1997},
  publisher	= {World Scientific},
  added		= {1998-01-22-10-35-50}
}

@TechReport{	  Ehrig-Korff-Loewe:90,
  author	= {H. Ehrig and M. Korff and M. L{\"o}we},
  title		= {Tutorial introduction to the algebraic approach of graph
		  grammars based on double and single pushouts},
  number	= {90/21},
  year		= {1990},
  institution	= {Technische Universit{\"a}t Berlin},
  added		= {1996-08-02-14-49-29}
}

@InProceedings{	  Ehrig-Korff-Loewe:91,
  author	= {Hartmut Ehrig and Martin Korff and Michael L{\"o}we},
  title		= {{Tutorial Introduction to the Algebraic Approach of Graph
		  Grammars based on Double and Single Pushouts}},
  editor	= {Hartmut Ehrig and Hans-J{\"o}rg Kreowski and Grzegorz
		  Rozenberg},
  booktitle	= {Proc.\ 4th. Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {532},
  pages		= {24--37},
  year		= {1991},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@Article{	  Ehrig-Kreowski-Maggiolo-Schettini.ea:81,
  author	= {Hartmut Ehrig and Hans-J{\"o}rg Kreowski and Andrea
		  {Maggiolo-Schettini} and Barry K. Rosen and J\'ozef
		  Winkowski},
  title		= {Transformations of Structures: An Algebraic Approach},
  journal	= {Mathematical Systems Theory},
  volume	= {14},
  pages		= {305--334},
  year		= {1981},
  added		= {1996-03-13-10-09-20}
}

@Proceedings{	  Ehrig-Kreowski-Rozenberg:91,
  title		= {Graph Grammars and Their Application to Computer Science},
  editor	= {Hartmut Ehrig and Hans-J{\"o}rg Kreowski and Grzegorz
		  Rozenberg},
  series	= {Lecture Notes in Computer Science},
  volume	= {532},
  year		= {1991},
  added		= {1996-03-13-10-09-20}
}

@Unpublished{	  Ehrig-Kreowski-Taentzer:93,
  author	= {H. Ehrig and Hans-J{\"o}rg Kreowski and G. Taentzer},
  title		= {Canonical Derivations for High-level Replacement Sytems},
  year		= {1993},
  note		= {Submitted},
  added		= {1996-03-28-11-35-01}
}

@InProceedings{	  Ehrig-Kreowski-Taentzer:94,
  author	= {Hartmut Ehrig and Hans-J{\"o}rg Kreowski and Gabriele
		  Taentzer},
  title		= {Canonical Derivatiopns for High-Level Replacement
		  Systems},
  editor	= {Hans J{\"u}rgen Schneider and Hartmut Ehrig},
  booktitle	= {Graph Transformations in Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {776},
  pages		= {153--169},
  year		= {1994},
  added		= {1996-03-13-10-09-20}
}

@TechReport{	  Ehrig-Kreowski:75,
  author	= {Hartmut Ehrig and Hans-J{\"o}rg Kreowski},
  title		= {{Church-Rosser} Theorems Leading to Parallel and Canonical
		  Derivations in Graph Grammars},
  number	= {75-27},
  year		= {1975},
  institution	= {Berlin},
  added		= {1996-03-13-10-09-20}
}

@InCollection{	  Ehrig-Kreowski:76,
  author	= {Hartmut Ehrig and Hans-J{\"o}rg Kreowski},
  title		= {Parallel Graph Grammars},
  editor	= {A. Lindenmayer and G. Rozenberg},
  booktitle	= {Automata, Languages, Development},
  pages		= {425--442},
  year		= {1976},
  publisher	= {North Holland},
  address	= {Amsterdam},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Ehrig-Kreowski:76b,
  author	= {Hartmut Ehrig and Hans-J{\"o}rg Kreowski},
  title		= {Parallelism of Manipulations in Multidimensional
		  Information Structures},
  editor	= {A. Mazurkiewicz},
  booktitle	= {Mathematical Foundations of Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {45},
  pages		= {284--293},
  year		= {1976},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Ehrig-Kreowski:79,
  author	= {Hartmut Ehrig and Hans-J{\"o}rg Kreowski},
  title		= {Pushout-Properties: An Analysis of Gluing Constructions
		  for Graphs},
  journal	= {Mathematische Nachrichten},
  volume	= {91},
  pages		= {135--149},
  year		= {1979},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Ehrig-Kreowski:80,
  author	= {Hartmut Ehrig and Hans-J{\"o}rg Kreowski},
  title		= {Applications of Graph Grammar Theory to Consistency,
		  Synchronization and Scheduling in Data Base Systems},
  journal	= {Information Systems},
  volume	= {5},
  pages		= {225--238},
  year		= {1980},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Ehrig-Liedtke:79,
  author	= {Hartmut Ehrig and Axel Liedtke},
  title		= {{Locally Star Gluing Formulas for a Class of Parallel
		  Graph Grammars}},
  editor	= {Volker Claus and Hartmut Ehrig and Grzegorz Rozenberg},
  booktitle	= {Proc.\ 1st Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science and Biology},
  series	= {Lecture Notes in Computer Science},
  volume	= {73},
  pages		= {206--223},
  year		= {1979},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Ehrig-Loewe:91,
  author	= {Hartmut Ehrig and Michael L{\"o}we},
  title		= {{Computing by Graph Transformation: Overall Aims and New
		  Results}},
  editor	= {Hartmut Ehrig and Hans-J{\"o}rg Kreowski and Grzegorz
		  Rozenberg},
  booktitle	= {Proc.\ 4th. Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {532},
  pages		= {688--703},
  year		= {1991},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@Article{	  Ehrig-Loewe:93,
  author	= {Hartmut Ehrig and Michael L{\"o}we},
  title		= {Categorical Principles, Techniques and Results for
		  High-Level-Replacement Systems in Computer Science},
  journal	= {Applied Categorical Structures},
  volume	= {1},
  pages		= {21--50},
  year		= {1993},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Ehrig-Loewe:93b,
  author	= {Hartmut Ehrig and Michael L{\"o}we},
  title		= {Parallel and Distributed Derivations in the Single-Pushout
		  Approach},
  journal	= {Theoretical Computer Science},
  volume	= {109},
  pages		= {123--143},
  year		= {1993},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Ehrig-Loewe:93c,
  author	= {Hartmut Ehrig and Michael L{\"o}we},
  title		= {The {ESPRIT} Basic Research Working Group {COMPUGRAPH}
		  ``Computing by Graph Transformation'': {A} Survey},
  journal	= {Theoretical Computer Science},
  volume	= {109},
  pages		= {3--6},
  year		= {1993},
  added		= {1996-03-13-10-09-20}
}

@Proceedings{	  Ehrig-Nagl-Rozenberg.ea:87,
  title		= {Graph Grammars and Their Application to Computer Science},
  editor	= {Hartmut Ehrig and Manfred Nagl and Grzegorz Rozenberg and
		  Azriel Rosenfeld},
  series	= {Lecture Notes in Computer Science},
  volume	= {291},
  year		= {1987},
  added		= {1996-03-13-10-09-20}
}

@Proceedings{	  Ehrig-Nagl-Rozenberg:83,
  title		= {Graph Grammars and Their Application to Computer Science},
  editor	= {Hartmut Ehrig and Manfred Nagl and Grzegorz Rozenberg},
  series	= {Lecture Notes in Computer Science},
  volume	= {153},
  year		= {1983},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Ehrig-Parisi-Presicce:91,
  author	= {Hartmut Ehrig and Francesco Parisi-Presicce},
  title		= {{Algebraic Specification Grammars: A Junction between
		  Module Specifications and Graph Grammars}},
  editor	= {Hartmut Ehrig and Hans-J{\"o}rg Kreowski and Grzegorz
		  Rozenberg},
  booktitle	= {Proc.\ 4th. Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {532},
  pages		= {292--310},
  year		= {1991},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Ehrig-Pfender-Schneider:73,
  author	= {Hartmut Ehrig and M. Pfender and H. J. Schneider},
  title		= {Graph Grammars: An Algebraic Approach},
  booktitle	= {IEEE Conf. on Automata and Switching Theory},
  pages		= {167--180},
  year		= {1973},
  address	= {Iowa City},
  added		= {1996-03-13-10-09-20}
}

@TechReport{	  Ehrig-Rosen:76,
  author	= {Hartmut Ehrig and Barry K. Rosen},
  title		= {Commutativity of Independent Transformations on Complex
		  Objects},
  number	= {RC 6251},
  year		= {1976},
  institution	= {Yorktown Heights},
  type		= {IBM Research Report},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Ehrig-Rosen:78,
  author	= {Hartmut Ehrig and Barry K. Rosen},
  title		= {Concurrency of Manipulation in Multidimensional
		  Information Structures},
  editor	= {J. Winkowski},
  booktitle	= {Mathematical Foundations of Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {64},
  pages		= {165--176},
  year		= {1978},
  added		= {1996-03-13-10-09-20}
}

@TechReport{	  Ehrig-Rosen:79,
  author	= {Hartmut Ehrig and Barry K. Rosen},
  title		= {Commutativity, Parallelism and Concurrency for
		  Transformations of Structures},
  number	= {79-21},
  year		= {1979},
  institution	= {Berlin},
  type		= {Report},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Ehrig-Rosen:79b,
  author	= {Hartmut Ehrig and Barry K. Rosen},
  title		= {{Decomposition of Graph Grammars, Productions and
		  Derivations}},
  editor	= {Volker Claus and Hartmut Ehrig and Grzegorz Rozenberg},
  booktitle	= {Proc.\ 1st Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science and Biology},
  series	= {Lecture Notes in Computer Science},
  volume	= {73},
  pages		= {192--205},
  year		= {1979},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@Article{	  Ehrig-Rosen:80,
  author	= {Hartmut Ehrig and Barry K. Rosen},
  title		= {Parallelism and Concurrency of Graph Manipulations},
  journal	= {Theoretical Computer Science},
  volume	= {11},
  pages		= {247--275},
  year		= {1980},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Ehrig-Rosen:80b,
  author	= {Hartmut Ehrig and Barry K. Rosen},
  title		= {The Mathematics of Record Handling},
  journal	= {SIAM Journal on Computing},
  volume	= {9},
  number	= {3},
  pages		= {441--469},
  year		= {1980},
  added		= {1996-03-13-10-09-20}
}

@InCollection{	  Ehrig-Rozenberg:76,
  author	= {Hartmut Ehrig and Grzegorz Rozenberg},
  title		= {Some Definitional Suggestions for Parallel Graph
		  Grammars},
  editor	= {A Lindenmayer and G. Rozenberg},
  booktitle	= {Automata, Languages, Development},
  pages		= {443--468},
  year		= {1976},
  publisher	= {North Holland},
  address	= {Amsterdam},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Ehrig-Staples:83,
  ATTENTION	= {newer record added: Apr 16, 1996},
  author	= {Hartmut Ehrig and J. Staples},
  title		= {{Church-Rosser} Properties for Graph Replacement Systems
		  with Unique Splitting},
  editor	= {H. Ehrig and M. Nagl and G. Rozenberg},
  booktitle	= {Graph Grammars and Their Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {153},
  pages		= {82--101},
  year		= {1983},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Ehrig-Staples:83b,
  author	= {Hartmut Ehrig and John Staples},
  title		= {{Church-Rosser Properties for Graph Replacement Systems
		  with Unique Splitting}},
  editor	= {Hartmut Ehrig and Manfred Nagl and Grzegorz Rozenberg},
  booktitle	= {Proc.\ 2nd Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {153},
  pages		= {82--101},
  year		= {1983},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InCollection{	  Ehrig-Taentzer:92,
  author	= {Hartmut Ehrig and Gabriele Taentzer},
  title		= {From Parallel Graph Grammars to Parallel High-Level
		  Replacement Systems},
  editor	= {G. Rozenberg and A. Salomaa},
  booktitle	= {Lindenmayer Systems},
  pages		= {283--304},
  year		= {1992},
  publisher	= {Springer-Verlag},
  address	= {Berlin},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Ehrig-Tischer:74,
  author	= {Hartmut Ehrig and Karl Wilhelm Tischer},
  title		= {Graph Grammars for the Specialization of Organisms},
  booktitle	= {Proc. Conf. Biologocally Motivated Automata Theory},
  pages		= {158--165},
  year		= {1974},
  organization	= {MITRE Corp.},
  address	= {McLean, Va.},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Ehrig-Tischer:75,
  author	= {Hartmut Ehrig and Karl Wilhelm Tischer},
  title		= {Graph Grammars and Applications to Specialization and
		  Evolution in Biology},
  journal	= {Journal of Computer and System Sciences},
  volume	= {11},
  pages		= {212--236},
  year		= {1975},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Ehrig:77,
  author	= {Hartmut Ehrig},
  title		= {Embedding Theorems in the Algebraic Theory of Graph
		  Grammars},
  editor	= {M. Karpi\'nski},
  booktitle	= {Fundamentals of Computation Theory},
  series	= {Lecture Notes in Computer Science},
  volume	= {56},
  pages		= {245--255},
  year		= {1977},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Ehrig:79,
  author	= {Hartmut Ehrig},
  title		= {Introduction to the Algebraic Theory of Graph Grammars},
  editor	= {V. Claus and H. Ehrig and G. Rozenberg},
  booktitle	= {Graph-Grammars and Their Application to Computer Science
		  and Biology},
  series	= {Lecture Notes in Computer Science},
  volume	= {73},
  pages		= {1--69},
  year		= {1979},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Ehrig:79b,
  author	= {Hartmut Ehrig},
  title		= {{Introduction to the Algebraic Theory of Graph Grammars (A
		  Survey)}},
  editor	= {Volker Claus and Hartmut Ehrig and Grzegorz Rozenberg},
  booktitle	= {Proc.\ 1st Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science and Biology},
  series	= {Lecture Notes in Computer Science},
  volume	= {73},
  pages		= {1--69},
  year		= {1979},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Ehrig:83,
  author	= {Hartmut Ehrig},
  title		= {{Aspects of Concurrency in Graph Grammars}},
  editor	= {Hartmut Ehrig and Manfred Nagl and Grzegorz Rozenberg},
  booktitle	= {Proc.\ 2nd Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {153},
  pages		= {58--81},
  year		= {1983},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Ehrig:87,
  author	= {Hartmut Ehrig},
  title		= {{Tutorial Introduction to the Algebraic Approach of
		  Graph-Grammars}},
  editor	= {Hartmut Ehrig and Manfred Nagl and Grzegorz Rozenberg and
		  Azriel Rosenfeld},
  booktitle	= {Proc.\ 3rd Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {291},
  pages		= {3--14},
  year		= {1987},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@Article{	  Ehrig:92,
  author	= {H. Ehrig},
  title		= {Introduction to Graph Grammars with Applications to
		  Semantic Networks},
  editor	= {H. Ehrig and H.-J. Kreowski and G. Rozenberg},
  booktitle	= {Graph Grammars and Their Application to Computer Science},
  journal	= {Computer {M}athematical {A}pplications},
  series	= {Lecture Notes in Computer Science},
  volume	= {23},
  number	= {6-9},
  pages		= {557--5572},
  year		= {1992},
  publisher	= {Springer-Verlag},
  added		= {1996-04-16-07-34-15}
}

@InProceedings{	  Ellis-Willems:92,
  author	= {Gerard Ellis and Mark Willems},
  title		= {Analysing Semantic Networks Using Graph Grammars},
  booktitle	= {Working Notes for the AAAI Spring Symposium: Propositional
		  Knowledge Representation},
  year		= {1992},
  month		= mar # { 25-27},
  address	= {Stanford University},
  added		= {1996-04-16-07-34-15}
}

@Article{	  Engelfriet-Heyker-Leih:94,
  author	= {Joost Engelfriet and Linda Heyker and George Leih},
  title		= {Context-Free Graph Languages of Bounded Degree are
		  Generated by Apex Graph Grammars},
  journal	= {Acta Informatica},
  volume	= {31},
  pages		= {341--378},
  year		= {1994},
  added		= {1996-03-13-10-09-20}
}

@TechReport{	  Engelfriet-Heyker:89,
  author	= {Joost Engelfriet and L. Heyker},
  title		= {The string generating power of context--free hypergraph
		  grammars},
  number	= {89-05},
  year		= {1989},
  institution	= {Univ. Leiden},
  type		= {Report},
  added		= {1996-03-28-11-35-01}
}

@TechReport{	  Engelfriet-Heyker:91,
  author	= {Joost Engelfriet and Linda Heyker},
  title		= {Hypergraph Languages of Bounded Degree},
  number	= {91-01},
  year		= {1991},
  institution	= {Leiden},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Engelfriet-Heyker:91b,
  author	= {Joost Engelfriet and Linda Heyker},
  title		= {The String Generating Power of Context-Free Hypergraph
		  Grammars},
  journal	= {Journal of Computer and System Sciences},
  volume	= {43},
  pages		= {328--360},
  year		= {1991},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Engelfriet-Heyker:91c,
  author	= {Joost Engelfriet and Linda Heyker},
  title		= {{The Term Generating Power of Context-Free Hypergraph
		  Grammars}},
  editor	= {Hartmut Ehrig and Hans-J{\"o}rg Kreowski and Grzegorz
		  Rozenberg},
  booktitle	= {Proc.\ 4th. Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {532},
  pages		= {328--343},
  year		= {1991},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@Article{	  Engelfriet-Heyker:92,
  author	= {Joost Engelfriet and Linda Heyker},
  title		= {Context-Free Hypergraph Grammars Have the Same
		  Term-Generating Power as Attribute Grammars},
  journal	= {Acta Informatica},
  volume	= {29},
  pages		= {161--210},
  year		= {1992},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Engelfriet-Heyker:94,
  author	= {Joost Engelfriet and Linda Heyker},
  title		= {Hypergraph Languages of Bounded Degree},
  journal	= {Journal of Computer and System Sciences},
  volume	= {48},
  pages		= {58--89},
  year		= {1994},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Engelfriet-Leih-Rozenberg:87,
  author	= {Joost Engelfriet and George Leih and Grzegorz Rozenberg},
  title		= {{Apex Graph Grammars}},
  editor	= {Hartmut Ehrig and Manfred Nagl and Grzegorz Rozenberg and
		  Azriel Rosenfeld},
  booktitle	= {Proc.\ 3rd Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {291},
  pages		= {167--185},
  year		= {1987},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@Article{	  Engelfriet-Leih-Rozenberg:88,
  author	= {Joost Engelfriet and George Leih and Grzegorz Rozenberg},
  title		= {Apex Graph-Grammars and Attribute Grammars},
  journal	= {Acta Informatica},
  volume	= {25},
  pages		= {537--571},
  year		= {1988},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Engelfriet-Leih-Rozenberg:91,
  author	= {Joost Engelfriet and George Leih and Grzegorz Rozenberg},
  title		= {Nonterminal Separation in Graph Grammars},
  journal	= {Theoretical Computer Science},
  volume	= {82},
  pages		= {95--111, 537--571},
  year		= {1991},
  added		= {1996-03-13-10-09-20}
}

@Misc{		  Engelfriet-Leih-Welzl:87,
  author	= {Joost Engelfriet and George Leih and Emo Welzl},
  title		= {Characterization and Complexity of Boundary Graph
		  Languages},
  year		= {1987},
  address	= {Leiden},
  howpublished	= {Manuscript},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Engelfriet-Leih-Welzl:90,
  author	= {Joost Engelfriet and George Leih and Emo Welzl},
  title		= {Boundary Graph Grammars with Dynamic Edge Relabeling},
  journal	= {Journal of Computer and System Sciences},
  volume	= {40},
  pages		= {307--345},
  year		= {1990},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Engelfriet-Leih:88,
  author	= {Joost Engelfriet and George Leih},
  title		= {Nonterminal Bounded {NLC} Graph Grammars},
  journal	= {Theoretical Computer Science},
  volume	= {59},
  pages		= {309--315},
  year		= {1988},
  added		= {1996-03-13-10-09-20}
}

@TechReport{	  Engelfriet-Leih:88b,
  author	= {Joost Engelfriet and G. Leih},
  title		= {Complexity of boundary graph languages},
  number	= {88-07},
  year		= {1988},
  institution	= {Univ. Leiden},
  type		= {Report},
  added		= {1996-03-28-11-35-01}
}

@Article{	  Engelfriet-Leih:89,
  author	= {Joost Engelfriet and George Leih},
  title		= {Linear Graph Grammars: Power and Complexity},
  journal	= {Information and Computation},
  volume	= {81},
  pages		= {88--121},
  year		= {1989},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Engelfriet-Leih:90,
  author	= {Joost Engelfriet and George Leih},
  title		= {Complexity of Boundary Graph Languages},
  journal	= {{RAIRO} Theoretical Informatics and Applications},
  volume	= {24},
  pages		= {267--274},
  year		= {1990},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Engelfriet-Rozenberg-Slutzki:80,
  author	= {Joost Engelfriet and Grzegorz Rozenberg and Giora
		  Slutzki},
  title		= {Tree transducers, {L} Systems, and Two-Way Machines},
  journal	= {Journal of Computer and System Sciences},
  volume	= {20},
  pages		= {150--202},
  year		= {1980},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Engelfriet-Rozenberg:90,
  author	= {Joost Engelfriet and Grzegorz Rozenberg},
  title		= {A Comparison of Boundary Graph Grammars and Context-Free
		  Hypergraph Grammars},
  journal	= {Information and Computation},
  volume	= {84},
  pages		= {163--206},
  year		= {1990},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Engelfriet-Rozenberg:91,
  author	= {Joost Engelfriet and Grzegorz Rozenberg},
  title		= {{Graph Grammars Based on Node Rewriting: An Introduction
		  to NLC Graph Grammars}},
  editor	= {Hartmut Ehrig and Hans-J{\"o}rg Kreowski and Grzegorz
		  Rozenberg},
  booktitle	= {Proc.\ 4th. Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {532},
  pages		= {12--23},
  year		= {1991},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InCollection{	  Engelfriet-Rozenberg:96,
  ATTENTION	= {newer record added: Mar 17, 1997},
  author	= {Joost Engelfriet and Grzegorz Rozenberg},
  title		= {Node Replacement Graph Grammars},
  editor	= {G. Rozenberg},
  booktitle	= {Handbook of Graph Rewriting, Vol.~I: Foundations},
  year		= {1996},
  publisher	= {World Scientific},
  note		= {To appear},
  added		= {1996-03-13-10-09-20}
}

@InCollection{	  Engelfriet-Rozenberg:97,
  author	= {Engelfriet, Joost and Rozenberg, Grzegorz},
  title		= {Node Replacement Graph Grammars},
  editor	= {Rozenberg, G.},
  booktitle	= {Handbook of Graph Grammars and Computing by Graph
		  Transformation. Vol.\ {I}: Foundations},
  chapter	= {1},
  pages		= {1--94},
  year		= {1997},
  publisher	= {World Scientific},
  added		= {1997-03-17-16-11-19}
}

@Article{	  Engelfriet-Schmidt:77,
  author	= {Joost Engelfriet and E. Schmidt},
  title		= {{IO} and {OI}},
  journal	= {Journal of Computer and System Sciences},
  volume	= {15},
  pages		= {328--353},
  year		= {1977},
  note		= {and Journal of Computer and System Sciences 16, 67-99,
		  1978},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Engelfriet-Vereijken:96,
  author	= {Joost Engelfriet and Jan J. Vereijken},
  title		= {{Concatenation of Graphs}},
  editor	= {Janice E. Cuny and Hartmut Ehrig and Gregor Engels and
		  Grzegorz Rozenberg},
  booktitle	= {Proc.\ 5th Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {1073},
  pages		= {368--382},
  year		= {1996},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@Article{	  Engelfriet-Vogler:94,
  author	= {Joost Engelfriet and Heiko Vogler},
  title		= {The Translation Power of Top-Down Tree-to-Graph
		  Transducers},
  journal	= {Journal of Computer and System Sciences},
  volume	= {49},
  pages		= {258--305},
  year		= {1994},
  added		= {1996-03-13-10-09-20}
}

@TechReport{	  Engelfriet-Vogler:96,
  author	= {Engelfriet, Joost and Vogler, Heiko},
  title		= {The Equivalence of Bottom-Up and Top-Down Tree-to-Graph
		  Transducers},
  number	= {TUD/FI96/17},
  year		= {1996},
  institution	= {TU Dresden},
  type		= {Tech.\ Report},
  added		= {1997-04-01-17-37-33}
}

@InProceedings{	  Engelfriet:89,
  author	= {Joost Engelfriet},
  title		= {Context-Free {NCE} Graph Grammars},
  editor	= {J. Csirik and J. Demetrovics and F. G\'ecseg},
  booktitle	= {Fundamentals of Computation Theory},
  series	= {Lecture Notes in Computer Science},
  volume	= {380},
  pages		= {148--161},
  year		= {1989},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Engelfriet:91,
  author	= {Joost Engelfriet},
  title		= {A Regular Characterization of Graph Languages Definable in
		  Monadic Second-Order Logic},
  journal	= {Theoretical Computer Science},
  volume	= {88},
  pages		= {139--150},
  year		= {1991},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Engelfriet:91b,
  author	= {Joost Engelfriet},
  title		= {{A Characterization of Context-Free NCE Graph Languages by
		  Monadic Second-Order Logic on Trees}},
  editor	= {Hartmut Ehrig and Hans-J{\"o}rg Kreowski and Grzegorz
		  Rozenberg},
  booktitle	= {Proc.\ 4th. Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {532},
  pages		= {311--327},
  year		= {1991},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Engelfriet:92,
  author	= {Joost Engelfriet},
  title		= {A {G}reibach Normal Form for Context-Free Graph Grammars},
  editor	= {W. Kuich},
  booktitle	= {Automata, Languages and Programming},
  series	= {Lecture Notes in Computer Science},
  volume	= {623},
  pages		= {138--149},
  year		= {1992},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Engelfriet:94,
  author	= {Joost Engelfriet},
  title		= {Graph Grammars and Tree Transducers},
  editor	= {S. Tison},
  booktitle	= {CAAP'94},
  series	= {Lecture Notes in Computer Science},
  volume	= {787},
  pages		= {15--36},
  year		= {1994},
  added		= {1996-03-13-10-09-20}
}

@InCollection{	  Engelfriet:97,
  author	= {Engelfriet, Joost},
  title		= {Context-Free Graph Grammars},
  editor	= {Rozenberg, G. and Salomaa, A.},
  booktitle	= {Handbook of Formal Languages. Vol.\ {III}: Beyond Words},
  chapter	= {3},
  pages		= {125--213},
  year		= {1997},
  publisher	= {Springer},
  added		= {1997-04-01-16-13-08}
}

@Article{	  Engels-Ehrig-Heckel.ea:97,
  author	= {Engels, G. and Ehrig, H. and Heckel, R. and Taentzer, G.},
  title		= {A Combined Reference Model- and View-Based Approach to
		  System Specification},
  journal	= {Int. Journal of Software and Knowledge Engeneering},
  year		= {1997},
  note		= {Accepted, to appear},
  added		= {1998-01-22-10-35-50}
}

@Article{	  Engels-Gall-Nagl.ea:83,
  author	= {Gregor Engels and Rupert Gall and Manfred Nagl and Wilhelm
		  Sch{\"a}fer},
  title		= {Software Specification Using Graph Grammars},
  journal	= {Computing},
  volume	= {31},
  pages		= {317--346},
  year		= {1983},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Engels-Gogolla-Hohenstein.ea:92,
  author	= {Gregor Engels and Martin Gogolla and Uwe Hohenstein and
		  Klaus H{\"u}lsmann and Perdita L{\"o}hr-Richter and Gunter
		  Saake and Hans-Dieter Ehrich},
  title		= {Conceptual Modelling of Database Applications Using an
		  Extended {ER} Model},
  journal	= {Data \& Knowledge Engineering},
  volume	= {9},
  pages		= {157--204},
  year		= {1992},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Engels-Heckel-Taentzer.ea:97,
  author	= {Engels, G. and Heckel, R. and Taentzer, G. and Ehrig, H.},
  title		= {A View-Oriented Approach to System Modelling based on
		  Graph Transformation},
  booktitle	= {Proc. of ESEC/FSE'97, Z\"urich},
  series	= {LNCS},
  volume	= {1301},
  year		= {1997},
  publisher	= {Springer Verlag},
  added		= {1998-01-22-10-35-50}
}

@Article{	  Engels-Lewerentz-Nagl.ea:92,
  author	= {Gregor Engels and Claus Lewerentz and Manfred Nagl and
		  Wilhelm Sch{\"a}fer and Andy Sch{\"u}rr},
  title		= {Building Integrated Software Developments Part {I}: Tool
		  Specification},
  journal	= {ACM Transactions on Software Engineering and Methodology},
  volume	= {1},
  number	= {2},
  pages		= {135--167},
  year		= {1992},
  publisher	= {acm Press},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Engels-Lewerentz-Schaefer:87,
  author	= {Gregor Engels and Claus Lewerentz and Wilhelm Sch{\"a}fer},
  title		= {{Graph-Grammar Engineering: A Software Specification
		  Method}},
  editor	= {Hartmut Ehrig and Manfred Nagl and Grzegorz Rozenberg and
		  Azriel Rosenfeld},
  booktitle	= {Proc.\ 3rd Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {291},
  pages		= {186--201},
  year		= {1987},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Engels-Schaefer:85,
  author	= {Gregor Engels and Wilhelm Sch{\"a}fer},
  title		= {Graph Grammar Engineering: {A} Method Used for the
		  Development of the Integrated Programming Support
		  Environment},
  editor	= {H. Ehrig and C. Floyd and M. Nivat and J. Thatcher},
  booktitle	= {Formal Methods and Software Development},
  series	= {Lecture Notes in Computer Science},
  volume	= {186},
  pages		= {179--193},
  year		= {1985},
  added		= {1996-03-13-10-09-20}
}

@Book{		  Engels-Schaefer:89,
  author	= {Gregor Engels and Wilhelm Sch{\"a}fer},
  title		= {Programmentwicklungsumgebungen: Konzepte und
		  Realisierung},
  year		= {1989},
  publisher	= {Teubner},
  address	= {Stuttgart},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Engels-Schuerr:95,
  author	= {Gregor Engels and Andy Schuerr},
  title		= {Encapsulated Hierachical Graphs, Graph Types, and Meta
		  Types},
  booktitle	= {SEGRAGRA'95, Joint COMPUGRAPH/SEMAGRAPH Workshop on Graph
		  Rewriting and Computation},
  series	= {Electronic Notes in Theoretical Computer Science},
  volume	= {2},
  year		= {1995},
  publisher	= {Elsevier},
  added		= {1996-03-13-10-09-20}
}

@TechReport{	  Engels-Schuerr:95b,
  author	= {G. Engels and A. Schuerr},
  title		= {Encapsulated Hierarchical Graphs, Graph Types, and Meta
		  Types},
  number	= {95-21},
  year		= {1995},
  month		= jul,
  institution	= {Departement of Computer Science, Leiden University},
  address	= {P.O. Box 9512, 2300 RA Leiden, The Netherlands},
  added		= {1996-04-16-07-34-15}
}

@PhDThesis{	  Engels:86,
  author	= {Gregor Engels},
  title		= {{Graphen als zentrale Datenstrukturen in einer
		  Software-Entwicklungsumgebung}},
  year		= {1986},
  school	= {Universit{\"a}t Osnabr{\"u}ck},
  note		= {VDI-Verlag},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Engels:91,
  author	= {Gregor Engels},
  title		= {{Elementary Actions on an Extended Entity-Relationship
		  Database}},
  editor	= {Hartmut Ehrig and Hans-J{\"o}rg Kreowski and Grzegorz
		  Rozenberg},
  booktitle	= {Proc.\ 4th. Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {532},
  pages		= {344--362},
  year		= {1991},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@Book{		  Even:79,
  author	= {Shimon Even},
  title		= {Graph Algorithms},
  year		= {1979},
  publisher	= {Computer Science Press},
  address	= {Rockville, Maryland},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Fahlman-Touretzky-Roggen:81,
  author	= {S. E. Fahlman and D. S. Touretzky and W. van Roggen},
  title		= {Cancellation in a Parallel Semantique Network},
  booktitle	= {Proceedings of the Seventh International Joint Conference
		  on Artificiale Intellingence, IJCAI'81},
  year		= {1981},
  added		= {1996-04-16-07-34-15}
}

@Article{	  Fahmy-Blostein:93,
  author	= {H. Fahmy and B. Blostein},
  title		= {A graph grammar programming style for recognition of music
		  notation},
  journal	= {Machine Vision and Application},
  volume	= {6},
  number	= {2},
  pages		= {83--99},
  year		= {1993},
  added		= {1996-08-02-14-49-29}
}

@InProceedings{	  Farrow-Kennedy-Zucconi:76,
  author	= {R. Farrow and K. Kennedy and L. Zucconi},
  title		= {Graph Grammars and Global Program Data Flow Analysis},
  booktitle	= {Proc. 17th Ann. IEEE Symp. on Found. of Comp. Sci.},
  pages		= {42--56},
  year		= {1976},
  address	= {Houston},
  added		= {1996-03-13-10-09-20}
}

@Book{		  FdAmore-PFranciosa-AMarchetti-Spaccamela:96,
  title		= {WG'96: 22nd International Workshop on Graph Theoretic
		  Concepts in Computer Science},
  editor	= {F.~d'Amore and P.~Franciosa and A.~Marchetti-Spaccamela},
  series	= {Lecture Notes in Computer Science},
  volume	= {1197},
  year		= {1996},
  publisher	= {Springer-Verlag},
  address	= {Berlin},
  note		= {Continuation of the WG {\em Fachtagung}},
  added		= {2000-05-23-18-31-23}
}

@Article{	  Feder:68,
  author	= {Jerome Feder},
  title		= {Languages of Encoded Line Patterns},
  journal	= {Information and Control},
  volume	= {13},
  pages		= {230--244},
  year		= {1968},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Feder:71,
  author	= {Jerome Feder},
  title		= {Plex Languages},
  journal	= {Information Sciences},
  volume	= {3},
  pages		= {225--241},
  year		= {1971},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Fischer-Koch-Berthold:98,
  author	= {I. Fischer and M. Koch and M. Berthold},
  title		= {Proving Properties of Neural Networks with Graph
		  Transformations},
  booktitle	= {Proceedings of the 1998 IEEE World Congress on
		  Computational Intelligence},
  volume	= {1},
  pages		= {441--446},
  year		= {1998},
  month		= may,
  address	= {Anchorage, Alaska},
  added		= {1999-02-08-15-43-38}
}

@PhDThesis{	  Fischer:98,
  author	= {Ingrid Fischer},
  title		= {Modelling Neural Networks with Graph Transformations},
  year		= {1998},
  month		= dec,
  school	= {University of Erlangen-Nuremberg},
  note		= {{T}echnical {R}eport, {IMMD}, {U}niversity of
		  {E}rlangen--{N}uremberg, volume 31, {Nr}. 11},
  added		= {1999-02-08-15-43-38}
}

@InProceedings{	  Fitzhorn:87,
  author	= {Patrick Fitzhorn},
  title		= {{A Linguistic Formalism for Engineering Solid Modeling}},
  editor	= {Hartmut Ehrig and Manfred Nagl and Grzegorz Rozenberg and
		  Azriel Rosenfeld},
  booktitle	= {Proc.\ 3rd Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {291},
  pages		= {202--215},
  year		= {1987},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@Article{	  Flasinski:88,
  author	= {Flasinski, Mariusz},
  title		= {Parsing of {edNLC}-Graph Grammars for Scene Analysis},
  journal	= {Pattern Recognition},
  volume	= {21},
  pages		= {623--629},
  year		= {1988},
  added		= {1997-09-10-17-02-53}
}

@Article{	  Flasinski:89,
  author	= {M. Flasi\'nski},
  title		= {Characteristics of {edNLC}-Graph Grammar for Syntactic
		  Pattern Recognition},
  journal	= {Computer Vision, Graphics, and Image Processing},
  volume	= {47},
  pages		= {1--21},
  year		= {1989},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Flasinski:90,
  author	= {Flasinski, Mariusz},
  title		= {Distorted Pattern Analysis with the Help of Node Label
		  Controlled Graph Languages},
  journal	= {Pattern Recognition},
  volume	= {23},
  pages		= {765--774},
  year		= {1990},
  added		= {1997-09-10-17-02-53}
}

@Article{	  Flasinski:93,
  author	= {Flasinski, Mariusz},
  title		= {On the Parsing of Deterministic Graph Languages for
		  Syntactic Pattern Recognition},
  journal	= {Pattern Recognition},
  volume	= {26},
  pages		= {1--16},
  year		= {1993},
  added		= {1997-09-10-17-02-53}
}

@Article{	  Flasinski:95,
  author	= {Flasinski, Mariusz},
  title		= {Use of Graph Grammars for the Description of Mechanical
		  Parts},
  journal	= {Computer Aided Design},
  volume	= {27},
  pages		= {403--433},
  year		= {1995},
  added		= {1997-09-10-17-02-53}
}

@Misc{		  Fonio:84,
  author	= {Harald-Reto Fonio},
  title		= {Amalgamation of Graph Transformations with Application to
		  Synchronization in Distributed Systems},
  year		= {1984},
  note		= {Master thesis, Berlin},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Fracchia-Prusinkiewicz:91,
  author	= {F. David Fracchia and Przemyslaw Prusinkiewicz},
  title		= {{Physically-Based Graphical Interpretation of Marker
		  Cellwork L-Systems}},
  editor	= {Hartmut Ehrig and Hans-J{\"o}rg Kreowski and Grzegorz
		  Rozenberg},
  booktitle	= {Proc.\ 4th. Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {532},
  pages		= {363--377},
  year		= {1991},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Fracchia:96,
  author	= {F. David Fracchia},
  title		= {{Integrating Lineage and Interaction for the Visualization
		  of Cellular Structures}},
  editor	= {Janice E. Cuny and Hartmut Ehrig and Gregor Engels and
		  Grzegorz Rozenberg},
  booktitle	= {Proc.\ 5th Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {1073},
  pages		= {521--535},
  year		= {1996},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Franck:76,
  author	= {Reinhold Franck},
  title		= {{PLAN2D} --- Syntactic Analysis of Precedence Graph
		  Grammars},
  booktitle	= {Proc. 3rd ACM Symp. on Principles of Programming
		  Languages},
  pages		= {134--139},
  year		= {1976},
  address	= {Atlanta},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Franck:78,
  author	= {Reinhold Franck},
  title		= {A Class of Linearly Parsable Graph Grammars},
  journal	= {Acta Informatica},
  volume	= {10},
  pages		= {175--201},
  year		= {1978},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Freund-Haberstroh:91,
  author	= {R. Freund and B. Haberstroh},
  title		= {Attributed Elementary Programmed Graph Grammars},
  editor	= {G. Schmidt and R. Berghammer},
  booktitle	= {Graph-Theoric Concepts in Computer Science, 17th
		  International Workshop, WG'91, Fishbachau, Germany},
  series	= {Lecture Notes in Computer Science},
  number	= {643},
  pages		= {75--84},
  year		= {1991},
  publisher	= {Springer-Verlag},
  added		= {1996-04-16-07-34-15}
}

@Article{	  Fu-Booth:75,
  author	= {K. S. Fu and T. L. Booth},
  title		= {Grammatical Inference: Introduction and Survey --- Part
		  {I} and {II}},
  journal	= {IEEE-Transactions on Systems, Man and Cybernetics},
  volume	= {5},
  pages		= {95--111 and 409--423},
  year		= {1975},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Furtado-Veloso:83,
  author	= {A. L. Furtado and P. A. S. Veloso},
  title		= {{Specification of Data Bases through Rewriting Rules}},
  editor	= {Hartmut Ehrig and Manfred Nagl and Grzegorz Rozenberg},
  booktitle	= {Proc.\ 2nd Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {153},
  pages		= {102--114},
  year		= {1983},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Furtado:79,
  author	= {A. L. Furtado},
  title		= {{Transformations of Data Base Structures}},
  editor	= {Volker Claus and Hartmut Ehrig and Grzegorz Rozenberg},
  booktitle	= {Proc.\ 1st Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science and Biology},
  series	= {Lecture Notes in Computer Science},
  volume	= {73},
  pages		= {224--236},
  year		= {1979},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@Article{	  GCostagliola-AdeLucia-SOrefice.ea:97,
  author	= {G.~Costagliola and A.~de~Lucia and S.~Orefice and
		  G.~Tortora},
  title		= {A Parsing Methodology for the Implementation of Visual
		  Systems},
  journal	= {IEEE Transactions on Software Engineering},
  volume	= {12},
  number	= {23},
  year		= {1997},
  added		= {2000-05-23-18-31-23}
}

@Book{		  GEngels-GRozenberg-GEngels.ea:00,
  title		= {6th International Workshop on Theory and Application of
		  Graph Transformation},
  editor	= {G.~Engels and G.~Rozenberg and G.~Engels and
		  H.-J.~Kreowski},
  series	= {Lecture Notes in Computer Science},
  volume	= {1764},
  year		= {2000},
  publisher	= {Springer-Verlag},
  address	= {Berlin},
  note		= {Fresh! Contains about 30 Original Papers},
  added		= {2000-05-23-18-31-23}
}

@Article{	  GEngels-MAndries:96,
  author	= {G.~Engels and M.~Andries},
  title		= {A hybrid Query Language for an Extended Entity
		  Relationship Model},
  journal	= {Journal of Visual Languages and Computing},
  volume	= {7},
  number	= {3},
  pages		= {321--352},
  year		= {1996},
  publisher	= {Academic Press},
  added		= {2000-05-23-18-31-23}
}

@PhDThesis{	  GHeidenreich:99,
  author	= {G.~Heidenreich},
  title		= {Ein generisches Organisationsschema der
		  Konfigurationsverwaltung im Software-Engineering},
  year		= {1999},
  school	= {Institut f{\"u}r mathematische Maschinen und
		  Datenverarbeitung, Friedrich-Alexander-Universit{\"a}t
		  Erlangen-N{\"u}rnberg},
  note		= {Published as Technical Report IMMD 29/13},
  added		= {2000-05-23-18-31-23}
}

@Article{	  GLevi-FLuccio:73,
  author	= {G.~Levi and F.~Luccio},
  title		= {A Technique for Graph Embedding with Constraints on Node
		  and Arc Correspondences},
  journal	= {Information Science},
  volume	= {5},
  number	= {1},
  pages		= {1--24},
  year		= {1973},
  publisher	= {Elsevier},
  added		= {2000-05-23-18-31-23}
}

@Misc{		  GRRR:00,
  author	= {GRRR},
  year		= {2000},
  note		= {Yet another Graph Transformation System on the web},
  added		= {2000-05-23-18-31-23},
  url		= {http://www.cs.ukc.ac.uk/people/staff/pjr6/gdgr/}
}

@Article{	  GRozenberg-AEhrenfeucht:74,
  author	= {G.~Rozenberg and A.~Ehrenfeucht},
  title		= {Nonterminals versus Homomorphisms in Defining Languages
		  for some Classes of Rewriting Systems},
  journal	= {Acta Informatica},
  volume	= {3},
  pages		= {265--283},
  year		= {1974},
  publisher	= {Springer-Verlag},
  added		= {2000-05-23-18-31-23}
}

@Article{	  GRozenberg-ALindenmayer:73,
  author	= {G.~Rozenberg and A.~Lindenmayer},
  title		= {Developmental Systems with locally catenative Formulas},
  journal	= {Acta Informatica},
  volume	= {2},
  pages		= {214--248},
  year		= {1973},
  publisher	= {Springer-Verlag},
  added		= {2000-05-23-18-31-23}
}

@Article{	  GRozenberg-DJanssens-HGenrich.ea:84,
  author	= {G.~Rozenberg and D.~Janssens and H.~Genrich and
		  P.~Thiagarajan},
  title		= {Generalized Handle Grammars and their Relation to Petri
		  Nets},
  journal	= {Elektronische Informations-Verarbeitung und Kybernetik},
  volume	= {20},
  number	= {4},
  pages		= {179--206},
  year		= {1984},
  added		= {2000-05-23-18-31-23}
}

@Book{		  GRozenberg-HEhrig-GEngels.ea:95,
  title		= {5th International Workshop on Graph Grammars and their
		  Application to Computer Science},
  editor	= {G.~Rozenberg and H.~Ehrig and G.~Engels and J.~Cuny},
  series	= {Lecture Notes in Computer Science},
  volume	= {1073},
  year		= {1995},
  publisher	= {Springer-Verlag},
  address	= {Berlin},
  added		= {2000-05-23-18-31-23}
}

@Book{		  GRozenberg-HEhrig-MNagl.ea:87,
  title		= {3rd International Workshop on Graph Grammars and their
		  Application to Computer Science},
  editor	= {G.~Rozenberg and H.~Ehrig and M.~Nagl and A.~Rosenfeld},
  series	= {Lecture Notes in Computer Science},
  volume	= {291},
  year		= {1987},
  publisher	= {Springer-Verlag},
  address	= {Berlin},
  added		= {2000-05-23-18-31-23}
}

@Book{		  GRozenberg-HEhrig-MNagl.ea:91,
  title		= {4th International Workshop on Graph Grammars and their
		  Application to Computer Science},
  editor	= {G.~Rozenberg and H.~Ehrig and M.~Nagl and A.~Rosenfeld},
  series	= {Lecture Notes in Computer Science},
  volume	= {532},
  year		= {1991},
  publisher	= {Springer-Verlag},
  address	= {Berlin},
  added		= {2000-05-23-18-31-23}
}

@Book{		  GRozenberg-HEhrig-MNagl:83,
  title		= {2nd International Workshop on Graph Grammars and their
		  Application to Computer Science},
  editor	= {G.~Rozenberg and H.~Ehrig and M.~Nagl},
  series	= {Lecture Notes in Computer Science},
  volume	= {153},
  year		= {1983},
  publisher	= {Springer-Verlag},
  address	= {Berlin},
  added		= {2000-05-23-18-31-23}
}

@Book{		  GRozenberg-HEhrig-VClaus:79,
  title		= {International Workshop on Graph Grammars and their
		  Application to Computer Science and Biology},
  editor	= {G.~Rozenberg and H.~Ehrig and V.~Claus},
  series	= {Lecture Notes in Computer Science},
  volume	= {73},
  year		= {1979},
  publisher	= {Springer-Verlag},
  address	= {Berlin},
  note		= {Contains an extended Bibliography of Graph Grammar
		  Literature, compiled by M.~Nagl},
  added		= {2000-05-23-18-31-23}
}

@Book{		  GRozenberg-HEhrig.ea:99,
  title		= {Handbook on Graph Grammars and Computing by Graph
		  Transformation 2 (Specifications and Programming)},
  editor	= {G.~Rozenberg and H.~Ehrig and others},
  year		= {1999},
  publisher	= {World Scientific},
  address	= {Singapore},
  note		= {With CD-ROM including a lot of Graph Transformation
		  Software},
  added		= {2000-05-23-18-31-23}
}

@Book{		  GRozenberg-HEhrig.ea:99b,
  title		= {Handbook on Graph Grammars and Computing by Graph
		  Transformation 3 (Concurrency)},
  editor	= {G.~Rozenberg and H.~Ehrig and others},
  year		= {1999},
  publisher	= {World Scientific},
  address	= {Singapore},
  added		= {2000-05-23-18-31-23}
}

@Article{	  GRozenberg-HKleijn-RVerraedt:80,
  author	= {G.~Rozenberg and H.~Kleijn and R.~Verraedt},
  title		= {On the Role of Blocking in Rewriting Systems},
  journal	= {Acta Cybernetica},
  volume	= {5},
  pages		= {398--408},
  year		= {1980},
  added		= {2000-05-23-18-31-23}
}

@Article{	  GRozenberg:72,
  author	= {G.~Rozenberg},
  title		= {Direction-Controlled Programmed Grammars},
  journal	= {Acta Informatica},
  volume	= {1},
  pages		= {242--252},
  year		= {1972},
  publisher	= {Springer-Verlag},
  added		= {2000-05-23-18-31-23}
}

@InProceedings{	  GRozenberg:74,
  author	= {G.~Rozenberg},
  title		= {Introduction to L-Systems},
  booktitle	= {Proceedings of the Conference on Biologically motivated
		  Automata Theory},
  pages		= {29--37},
  year		= {1974},
  note		= {MITRE Corp. McLean Va.},
  added		= {2000-05-23-18-31-23}
}

@Article{	  GRozenberg:76,
  author	= {G.~Rozenberg},
  title		= {Context free Grammars with Graph controlled Tables},
  journal	= {Journal of Computer and System Sciences},
  volume	= {13},
  number	= {1},
  pages		= {90--99},
  year		= {1976},
  publisher	= {Academic Press},
  added		= {2000-05-23-18-31-23}
}

@Article{	  GRozenberg:77,
  author	= {G.~Rozenberg},
  title		= {Selective Substitution Grammars: Towards a Framework for
		  Rewriting Systems},
  journal	= {Elektronische Informations-Verarbeitung und Kybernetik},
  volume	= {13},
  number	= {9},
  pages		= {455--463},
  year		= {1977},
  added		= {2000-05-23-18-31-23}
}

@Book{		  GRozenberg:97,
  title		= {Handbook on Graph Grammars and Computing by Graph
		  Transformation 1 (Foundations)},
  editor	= {G.~Rozenberg},
  year		= {1997},
  publisher	= {World Scientific},
  address	= {Singapore},
  added		= {2000-05-23-18-31-23}
}

@Book{		  GSchmidt-RBerghammer:91,
  title		= {WG'91: 17th International Workshop on Graph Theoretic
		  Concepts in Computer Science},
  editor	= {G.~Schmidt and R.~Berghammer},
  series	= {Lecture Notes in Computer Science},
  volume	= {570},
  year		= {1991},
  publisher	= {Springer-Verlag},
  address	= {Berlin},
  note		= {Continuation of the WG {\em Fachtagung}},
  added		= {2000-05-23-18-31-23}
}

@Article{	  GSiromoney-RSiromoney-KKrithivasan:72,
  author	= {G.~Siromoney and R.~Siromoney and K.~Krithivasan},
  title		= {Abstract Families of Matrices and Picture Languages},
  journal	= {Computer Graphics and Image Processing},
  volume	= {1},
  year		= {1972},
  added		= {2000-05-23-18-31-23}
}

@Misc{		  GSiromoney-RSiromoney-KKrithivasan:73,
  author	= {G.~Siromoney and R.~Siromoney and K.~Krithivasan},
  title		= {N-dimensioal Array Languages and Description of Crystal
		  Symmetry},
  year		= {1973},
  note		= {Proceedings of the India Academy of Science},
  added		= {2000-05-23-18-31-23}
}

@Article{	  GSiromoney-RSiromoney-KKrithivasan:73b,
  author	= {G.~Siromoney and R.~Siromoney and K.~Krithivasan},
  title		= {Picture Languages with Array Rewriting Rules},
  journal	= {Information and Control},
  volume	= {23},
  number	= {5},
  pages		= {447--470},
  year		= {1973},
  publisher	= {Academic Press},
  added		= {2000-05-23-18-31-23}
}

@InProceedings{	  GSiromoney-RSiromoney:74,
  author	= {G.~Siromoney and R.~Siromoney},
  title		= {Radial Grammars and Biological Systems},
  booktitle	= {Proceedings of the Conference on Biologically motivated
		  Automata Theory},
  pages		= {92--96},
  year		= {1974},
  note		= {MITRE Corp. McLean Va.},
  added		= {2000-05-23-18-31-23}
}

@PhDThesis{	  GTaentzer:96,
  author	= {G.~Taentzer},
  title		= {Parallel and Distributed Graph Transformation: Formal
		  Description and Application to Communication based
		  Systems},
  year		= {1996},
  school	= {Fachbereich Informatik, Technische Universit{\"a}t Berlin},
  note		= {Published by Shaker-Verlag Aachen},
  added		= {2000-05-23-18-31-23}
}

@Book{		  GTinhofer-GSchmidt-EMayr:94,
  title		= {WG'94: 20th International Workshop on Graph Theoretic
		  Concepts in Computer Science},
  editor	= {G.~Tinhofer and G.~Schmidt and E.~Mayr},
  series	= {Lecture Notes in Computer Science},
  volume	= {903},
  year		= {1994},
  publisher	= {Springer-Verlag},
  address	= {Berlin},
  note		= {Continuation of the WG {\em Fachtagung}},
  added		= {2000-05-23-18-31-23}
}

@Book{		  GTinhofer-GSchmidt:86,
  title		= {WG'86: International Workshop on Graph Theoretic Concepts
		  in Computer Science},
  editor	= {G.~Tinhofer and G.~Schmidt},
  series	= {Lecture Notes in Computer Science},
  volume	= {246},
  year		= {1986},
  publisher	= {Springer-Verlag},
  address	= {Berlin},
  note		= {Continuation of the WG {\em Fachtagung}},
  added		= {2000-05-23-18-31-23}
}

@Article{	  GTucan:83,
  author	= {G.~Tucan},
  title		= {On the Complexity of Graph Grammars},
  journal	= {Acta Cybernetica},
  volume	= {6},
  pages		= {271--280},
  year		= {1983},
  added		= {2000-05-23-18-31-23}
}

@InProceedings{	  Gaifman:82,
  author	= {H. Gaifman},
  title		= {On Local and Non-Local Properties},
  editor	= {J. Stern},
  booktitle	= {Proc. of the Herbrand Symposium, Logic Colloquium '81},
  pages		= {105--135},
  year		= {1982},
  publisher	= {North Holland Pub. Co.},
  added		= {1996-03-13-10-09-20}
}

@Book{		  Gecseg-Steinby:84,
  author	= {Ferenc G\'ecseg and Magnus Steinby},
  title		= {Tree Automata},
  year		= {1984},
  publisher	= {Akad\'emiai Kiad\'o},
  address	= {Budapest},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Genrich-Janssens-Rozenberg.ea:83,
  author	= {H. J. Genrich and Dirk Janssens and Grzegorz Rozenberg and
		  P. S. Thiagarajan},
  title		= {{Petri Nets and their Relation to Graph Grammars}},
  editor	= {Hartmut Ehrig and Manfred Nagl and Grzegorz Rozenberg},
  booktitle	= {Proc.\ 2nd Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {153},
  pages		= {115--129},
  year		= {1983},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@Book{		  Gibbons:85,
  author	= {Alan Gibbons},
  title		= {Algorithmic Graph Theory},
  year		= {1985},
  publisher	= {Cambridge University Press},
  address	= {Cambridge},
  added		= {1996-03-13-10-09-20}
}

@Book{		  Ginsburg:66,
  author	= {S. Ginsburg},
  title		= {The Mathematical Theory of Context-Free Languages},
  year		= {1966},
  publisher	= {McGraw-Hill},
  address	= {New York},
  added		= {1996-03-28-11-35-01}
}

@Book{		  Gips:75,
  author	= {James Gips},
  title		= {Shape Grammars and Their Uses, Artificial Perception,
		  Shape Generation and Computer Aesthetics},
  year		= {1975},
  publisher	= {Birk\-h{\"a}user Verlag},
  address	= {Basel},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Glaubert-Kennaway-Sleep:91,
  author	= {John Glaubert and Richard Kennaway and Ronan Sleep},
  title		= {{DACTL}: An Experimental Graph Rewriting Language},
  editor	= {H. Ehrig and H.-J. Kreowski and G. Rozenberg},
  booktitle	= {Graph Grammars and Their Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {532},
  pages		= {378--395},
  year		= {1991},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Glauert-Kennaway-Sleep:91,
  author	= {John Glauert and Richard Kennaway and Ronan Sleep},
  title		= {{Dactl: An Experimental Graph Rewriting Language}},
  editor	= {Hartmut Ehrig and Hans-J{\"o}rg Kreowski and Grzegorz
		  Rozenberg},
  booktitle	= {Proc.\ 4th. Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {532},
  pages		= {378--395},
  year		= {1991},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Goettler-Guenther-Nieskens:91,
  author	= {Herbert G{\"o}ttler and Joachim G{\"u}nther and Georg
		  Nieskens},
  title		= {{Use Graph Grammars to Design CAD-Systems!}},
  editor	= {Hartmut Ehrig and Hans-J{\"o}rg Kreowski and Grzegorz
		  Rozenberg},
  booktitle	= {Proc.\ 4th. Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {532},
  pages		= {396--410},
  year		= {1991},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Goettler:83,
  author	= {Herbert G{\"o}ttler},
  title		= {{Attributed Graph Grammars for Graphics}},
  editor	= {Hartmut Ehrig and Manfred Nagl and Grzegorz Rozenberg},
  booktitle	= {Proc.\ 2nd Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {153},
  pages		= {130--142},
  year		= {1983},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Goettler:87,
  author	= {Herbert G{\"o}ttler},
  title		= {{Graph-Grammars and Diagram Editing}},
  editor	= {Hartmut Ehrig and Manfred Nagl and Grzegorz Rozenberg and
		  Azriel Rosenfeld},
  booktitle	= {Proc.\ 3rd Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {291},
  pages		= {216--231},
  year		= {1987},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@Book{		  Goettler:88,
  author	= {Herbert G{\"o}ttler},
  title		= {Graphgrammatiken in der Softwaretechnik},
  series	= {Informatik-Fachberichte},
  volume	= {178},
  year		= {1988},
  publisher	= {Springer-Verlag},
  address	= {Berlin},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Goldstine:77,
  author	= {J. Goldstine},
  title		= {A Simplified Proof of {Parikh}'s Theorem},
  journal	= {Discrete Mathematics},
  volume	= {19},
  pages		= {235--239},
  year		= {1977},
  added		= {1996-03-13-10-09-20}
}

@TechReport{	  Gottlieb-Furtado:74,
  author	= {C. Gottlieb and A. Furtado},
  title		= {Data Schemata Based on Directed Graphs},
  number	= {No.70},
  year		= {1974},
  institution	= {Dept. Comp. Sci., Univ. Toronto},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Groetsch-Nagl:79,
  author	= {Eberhard Gr{\"o}tsch and Manfred Nagl},
  title		= {{Explicit versus Implicit Parallel Rewriting on Graphs}},
  editor	= {Volker Claus and Hartmut Ehrig and Grzegorz Rozenberg},
  booktitle	= {Proc.\ 1st Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science and Biology},
  series	= {Lecture Notes in Computer Science},
  volume	= {73},
  pages		= {237--254},
  year		= {1979},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@TechReport{	  Grosse-Rhode-Presicce-Simeoni:97,
  author	= {Martin Grosse-Rhode and Francesco Parisi Presicce and
		  Marta Simeoni},
  title		= {A Simple notion of Refinement in Graph Transformation
		  Systems},
  number	= {10/97},
  year		= {1997},
  institution	= {Univ.\ Roma 'La Sapienza'},
  type		= {Report},
  added		= {1998-01-22-10-35-50}
}

@TechReport{	  Grosse-Rhode-Presicce-Simeoni:97b,
  author	= {Martin Grosse-Rhode and Francesco Parisi Presicce and
		  Marta Simeoni},
  title		= {Spatial and Temporal Refinement of Typed Graph
		  Transformation Systems},
  number	= {11/97},
  year		= {1997},
  institution	= {Univ.\ Roma 'La Sapienza'},
  type		= {Report},
  added		= {1998-01-22-10-35-50}
}

@Book{		  H-JSchneider-HEhrig:93,
  title		= {International Workshop on Graph Transformations in
		  Computer Science},
  editor	= {H.-J.~Schneider and H.~Ehrig},
  series	= {Lecture Notes in Computer Science},
  volume	= {776},
  year		= {1993},
  publisher	= {Springer-Verlag},
  address	= {Berlin},
  added		= {2000-05-23-18-31-23}
}

@Book{		  H-JSchneider-HGoettler:82,
  title		= {WG'82: 8th Conference on Graph Theoretic Concepts in
		  Computer Science},
  editor	= {H.-J.~Schneider and H.~G{\"o}ttler},
  year		= {1982},
  publisher	= {Hanser-Verlag},
  address	= {M{\"u}nchen},
  note		= {Continuation of the WG {\em Fachtagung}},
  added		= {2000-05-23-18-31-23}
}

@Book{		  H-JSchneider-HGoettler:87,
  title		= {WG'87: International Workshop on Graph Theoretic Concepts
		  in Computer Science},
  editor	= {H.-J.~Schneider and H.~G{\"o}ttler},
  series	= {Lecture Notes in Computer Science},
  volume	= {314},
  year		= {1987},
  publisher	= {Springer-Verlag},
  address	= {Berlin},
  note		= {Continuation of the WG {\em Fachtagung}},
  added		= {2000-05-23-18-31-23}
}

@Book{		  H-JSchneider-MNagl:78,
  title		= {WG'78: 4. Fachtagung {\"u}ber Graphentheoretische Konzepte
		  der Informatik},
  editor	= {H.-J.~Schneider and M.~Nagl},
  series	= {Berichte zur Praktischen Informatik},
  volume	= {13},
  year		= {1978},
  publisher	= {Hanser-Verlag},
  address	= {M{\"u}nchen},
  added		= {2000-05-23-18-31-23}
}

@TechReport{	  H-JSchneider:70,
  author	= {H.-J.~Schneider},
  title		= {Chomsky-Systeme f{\"u}r partielle Ordnungen},
  series	= {Arbeitsberichte des IMMD},
  volume	= {3},
  number	= {3},
  year		= {1970},
  institution	= {Friedrich-Alexander-Universit{\"a}t Erlangen-N{\"u}rnberg},
  added		= {2000-05-23-18-31-23}
}

@Article{	  H-JSchneider:96,
  author	= {H.-J.~Schneider},
  title		= {On Outward and Inward Productions in the Categorical Graph
		  Grammar Approach and Delta Grammars},
  journal	= {Mathematical Structures in Computer Science},
  volume	= {6},
  pages		= {527--543},
  year		= {1996},
  added		= {2000-05-23-18-31-23}
}

@TechReport{	  HBunke:74,
  author	= {H.~Bunke},
  title		= {Beschreibung eines Syntax-gesteuerten inkrementellen
		  Compilers durch Graph-Grammatiken},
  series	= {Arbeitsberichte des IMMD},
  volume	= {7},
  number	= {7},
  year		= {1974},
  institution	= {Friedrich-Alexander-Universit{\"a}t Erlangen-N{\"u}rnberg},
  added		= {2000-05-23-18-31-23}
}

@TechReport{	  HBunke:79,
  author	= {H.~Bunke},
  title		= {Sequentielle und Parallele Programmierte
		  Graph-Grammatiken},
  series	= {Arbeitsberichte des IMMD},
  volume	= {12},
  number	= {3},
  year		= {1979},
  institution	= {Friedrich-Alexander-Universit{\"a}t Erlangen-N{\"u}rnberg},
  added		= {2000-05-23-18-31-23}
}

@Article{	  HEhrig-GEngels-RHeckel.ea:97,
  author	= {H.~Ehrig and G.~Engels and R.~Heckel and G.~Taentzer},
  title		= {A combined Reference Model and View based Approach to
		  System Specification},
  journal	= {International Journal of Software and Knowledge
		  Engineering},
  volume	= {7},
  number	= {4},
  pages		= {457--477},
  year		= {1997},
  note		= {Special Issue on Graph Transformation},
  added		= {2000-05-23-18-31-23}
}

@Proceedings{	  HEhrig-GTaentzer:00,
  title		= {GRATRA'2000 Joint APPLIGRAPH and GETGRATS Workshop on
		  Graph Transformation Systems},
  editor	= {H.~Ehrig and G.~Taentzer},
  series	= {Forschungsberichte des Fachbereichs Informatik},
  number	= {2000-2},
  year		= {2000},
  institution	= {Technische Universit{\"a}t Berlin},
  note		= {Satellite to ETAPS'2000. Contains about 30 Original Papers
		  and 5 Cross References to Graph Grammar related ETAPS'2000
		  Contributions},
  added		= {2000-05-23-18-31-23},
  issn		= {1436-9915}
}

@InProceedings{	  HEhrig-KTischer:74,
  author	= {H.~Ehrig and K.~Tischer},
  title		= {Graph Grammars for the Specialization of Organisms},
  booktitle	= {Proceedings of the Conference on Biologically motivated
		  Automata Theory},
  pages		= {158--165},
  year		= {1974},
  note		= {MITRE Corp. McLean Va.},
  added		= {2000-05-23-18-31-23}
}

@TechReport{	  HEhrig-MNagl-H-JSchneider:75,
  author	= {H.~Ehrig and M.~Nagl and H.-J.~Schneider},
  title		= {Three Papers on Graph Rewriting Systems and their
		  Applications},
  series	= {Arbeitsberichte des IMMD},
  volume	= {8},
  number	= {1},
  year		= {1975},
  institution	= {Friedrich-Alexander-Universit{\"a}t Erlangen-N{\"u}rnberg},
  added		= {2000-05-23-18-31-23}
}

@TechReport{	  HEhrig:93,
  author	= {H.~Ehrig},
  title		= {FLEX: a flexible Extension and Integration Concept for
		  Software Development in KORSO and COMPASS},
  series	= {Forschungsberichte des Fachbereichs Informatik},
  number	= {93-17},
  year		= {1993},
  institution	= {Technische Universit{\"a}t Berlin},
  added		= {2000-05-23-18-31-23},
  issn		= {1436-9915}
}

@TechReport{	  HGoettler:77,
  author	= {H.~G{\"o}ttler},
  title		= {Zweistufige Graph-Manipulations-Systeme f{\"u}r die
		  Semantik von Programmiersprachen},
  series	= {Arbeitsberichte des IMMD},
  volume	= {10},
  number	= {12},
  year		= {1977},
  institution	= {Friedrich-Alexander-Universit{\"a}t Erlangen-N{\"u}rnberg},
  added		= {2000-05-23-18-31-23}
}

@TechReport{	  HGoettler:80,
  author	= {H.~G{\"o}ttler},
  title		= {Semantische Modelle},
  series	= {Arbeitsberichte des IMMD},
  volume	= {13},
  number	= {2},
  year		= {1980},
  institution	= {Friedrich-Alexander-Universit{\"a}t Erlangen-N{\"u}rnberg},
  added		= {2000-05-23-18-31-23}
}

@Book{		  HGoettler:88,
  author	= {H.~G{\"o}ttler},
  title		= {Graphgrammatiken in der Softwaretechnik: Theorie und
		  Anwendungen},
  series	= {Informatik-Fachberichte},
  volume	= {178},
  year		= {1988},
  publisher	= {Springer-Verlag},
  address	= {Berlin},
  note		= {Venia Legendi Thesis (Habilitation)},
  added		= {2000-05-23-18-31-23}
}

@Article{	  HLBodlaender-JEngelfriet:97,
  author	= {H.~L.~Bodlaender and J.~Engelfriet},
  title		= {Domino Treewidth},
  journal	= {J. of Algorithms},
  volume	= {24},
  pages		= {94--123},
  year		= {1997},
  added		= {1998-01-22-10-35-50}
}

@Article{	  HMaurer:73,
  author	= {H.~Maurer},
  title		= {Simple Matrix Languages with Leftmost Restriction},
  journal	= {Information and Control},
  volume	= {23},
  number	= {2},
  pages		= {128--139},
  year		= {1973},
  publisher	= {Academic Press},
  added		= {2000-05-23-18-31-23}
}

@Book{		  HNoltemeier:76,
  title		= {WG'76: 2. Fachtagung {\"u}ber Graphentheoretische Konzepte
		  der Informatik},
  editor	= {H.~Noltemeier},
  series	= {Berichte zur Praktischen Informatik},
  volume	= {4},
  year		= {1976},
  publisher	= {Hanser-Verlag},
  address	= {M{\"u}nchen},
  added		= {2000-05-23-18-31-23}
}

@Book{		  HNoltemeyer:80,
  title		= {WG'80: International Workshop on Graph Theoretic Concepts
		  in Computer Science},
  editor	= {H.~Noltemeyer},
  series	= {Lecture Notes in Computer Science},
  volume	= {100},
  year		= {1980},
  publisher	= {Springer-Verlag},
  address	= {Berlin},
  note		= {Continuation of the WG {\em Fachtagung}},
  added		= {2000-05-23-18-31-23}
}

@Book{		  HNoltemeyer:85,
  title		= {WG'85: International Workshop on Graph Theoretic Concepts
		  in Computer Science},
  editor	= {H.~Noltemeyer},
  year		= {1985},
  publisher	= {Trauner-Verlag},
  address	= {Linz},
  note		= {Continuation of the WG {\em Fachtagung}},
  added		= {2000-05-23-18-31-23}
}

@Article{	  Habel-Heckel-Taentzer:96,
  author	= {Annegret Habel and Reiko Heckel and Gabriele Taentzer},
  title		= {Graph Grammars with Negative Application Conditions},
  journal	= {Fundamenta Informaticae},
  volume	= {26},
  number	= {3/4},
  pages		= {287--313},
  year		= {1996},
  added		= {1996-03-13-10-09-20}
}

@Misc{		  Habel-Klempien-Hinrichs:96,
  author	= {Annegret Habel and Renate {Klempien-Hinrichs}},
  title		= {On the Replacement of Atomic Units in Hypergraphs},
  year		= {1996},
  added		= {1996-03-13-10-09-20}
}

@TechReport{	  Habel-Kreowski-Lautemann:89,
  author	= {Annegret Habel and Hans-J{\"o}rg Kreowski and Clemens
		  Lautemann},
  title		= {A comparison of compatible, finite, and inductive graph
		  properties},
  number	= {7/89},
  year		= {1989},
  institution	= {Univ. Bremen},
  type		= {Report},
  added		= {1996-03-28-11-35-01}
}

@Article{	  Habel-Kreowski-Lautemann:93,
  author	= {Annegret Habel and Hans-J{\"o}rg Kreowski and Clemens
		  Lautemann},
  title		= {A Comparison of Compatible, Finite, and Inductive Graph
		  Properties},
  journal	= {Theoretical Computer Science},
  volume	= {110},
  pages		= {145--168},
  year		= {1993},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Habel-Kreowski-Plump:88,
  author	= {Annegret Habel and Hans-J{\"o}rg Kreowski and Detlef
		  Plump},
  title		= {Jungle Evaluation},
  editor	= {D. Sannella and A. Tarlecki},
  booktitle	= {Recent Trends in Data Type Specification},
  series	= {Lecture Notes in Computer Science},
  volume	= {332},
  pages		= {92--112},
  year		= {1988},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Habel-Kreowski-Plump:91,
  author	= {Annegret Habel and Hans-J{\"o}rg Kreowski and Detlef
		  Plump},
  title		= {Jungle Evaluation},
  journal	= {Fundamenta Informaticae},
  volume	= {XV},
  pages		= {37--60},
  year		= {1991},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Habel-Kreowski-Taubenberger:93,
  author	= {Annegret Habel and Hans-J{\"o}rg Kreowski and Stefan
		  Taubenberger},
  title		= {Collages and Patterns Generated by Hyperedge Replacement},
  journal	= {Languages of Design},
  volume	= {1},
  pages		= {125--145},
  year		= {1993},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Habel-Kreowski-Vogler:87,
  author	= {Annegret Habel and Hans-J{\"o}rg Kreowski and Walter
		  Vogler},
  title		= {Compatible Graph Properties are Decidable for Hyperedge
		  Replacement Graph Languages},
  journal	= {Bull. EATCS},
  volume	= {33},
  pages		= {55--62},
  year		= {1987},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Habel-Kreowski-Vogler:89,
  author	= {Annegret Habel and Hans-J{\"o}rg Kreowski and Walter
		  Vogler},
  title		= {Decidable Boundedness Problems for Hyperedge-Replacement
		  Graph Grammars},
  editor	= {J. D\'{\i}az and F. Orejas},
  booktitle	= {TAPSOFT '89},
  series	= {Lecture Notes in Computer Science},
  volume	= {351},
  pages		= {275--289},
  year		= {1989},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Habel-Kreowski-Vogler:89b,
  author	= {Annegret Habel and Hans-J{\"o}rg Kreowski and Walter
		  Vogler},
  title		= {Metatheorems for Decision Problems on Hyperedge
		  Replacement Graph Languages},
  journal	= {Acta Informatica},
  volume	= {26},
  pages		= {657--677},
  year		= {1989},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Habel-Kreowski-Vogler:91,
  author	= {Annegret Habel and Hans-J{\"o}rg Kreowski and Walter
		  Vogler},
  title		= {Decidable Boundedness Problems for Sets of Graphs
		  Generated by Hyperedge Replacement},
  journal	= {Theoretical Computer Science},
  volume	= {89},
  pages		= {33--62},
  year		= {1991},
  added		= {1996-03-13-10-09-20}
}

@TechReport{	  Habel-Kreowski-Wilharm:87,
  author	= {Annegret Habel and Hans-J{\"o}rg Kreowski and Anne
		  Wilharm},
  title		= {Bremen-Town Contributions to the Third {GRAGRA}
		  Proceedings},
  number	= {4/87},
  year		= {1987},
  institution	= {Bremen},
  added		= {1996-03-13-10-09-20}
}

@InCollection{	  Habel-Kreowski:83,
  author	= {Annegret Habel and Hans-J{\"o}rg Kreowski},
  title		= {{On Context-Free Graph Languages Generated by Edge
		  Replacement}},
  editor	= {Hartmut Ehrig and Manfred Nagl and Grzegorz Rozenberg},
  booktitle	= {Proc.\ 2nd Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {153},
  pages		= {143--158},
  year		= {1983},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@Article{	  Habel-Kreowski:87,
  author	= {Annegret Habel and Hans-J{\"o}rg Kreowski},
  title		= {Characteristics of Graph Languages Generated by Edge
		  Replacement},
  journal	= {Theoretical Computer Science},
  volume	= {51},
  pages		= {81--115},
  year		= {1987},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Habel-Kreowski:87b,
  author	= {Annegret Habel and Hans-J{\"o}rg Kreowski},
  title		= {Some Structural Aspects of Hypergraph Languages Generated
		  by Hyperedge Replacement},
  editor	= {F. Brandenburg and G. {Vidal-Naquet} and M. Wirsing},
  booktitle	= {STACS 87},
  series	= {Lecture Notes in Computer Science},
  volume	= {247},
  pages		= {207--219},
  year		= {1987},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Habel-Kreowski:87c,
  author	= {Annegret Habel and Hans-J{\"o}rg Kreowski},
  title		= {{May we Introduce to you: Hyperedge Replacement}},
  editor	= {Hartmut Ehrig and Manfred Nagl and Grzegorz Rozenberg and
		  Azriel Rosenfeld},
  booktitle	= {Proc.\ 3rd Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {291},
  pages		= {15--26},
  year		= {1987},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Habel-Kreowski:88,
  author	= {Annegret Habel and Hans-J{\"o}rg Kreowski},
  title		= {Pretty Patterns Produced by Hyperedge Replacement},
  editor	= {H. G{\"o}ttler and H. J. Schneider},
  booktitle	= {Graph-Theoretic Concepts in Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {314},
  pages		= {32--45},
  year		= {1988},
  added		= {1996-03-13-10-09-20}
}

@TechReport{	  Habel-Kreowski:89,
  author	= {Annegret Habel and Hans-J{\"o}rg Kreowski},
  title		= {Formale {G}raph-{S}prachen ({T}eil 1)},
  year		= {1989},
  institution	= {Bremen},
  type		= {{Material zur gleichnamigen Lehrveranstaltung im
		  Wintersemester 1989/90}},
  added		= {1996-03-13-10-09-20}
}

@TechReport{	  Habel-Kreowski:90,
  author	= {Annegret Habel and Hans-J{\"o}rg Kreowski},
  title		= {Collages and Patterns Generated by Hyperedge Replacement},
  number	= {15/90},
  year		= {1990},
  institution	= {Bremen},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Habel-Kreowski:90b,
  author	= {Annegret Habel and Hans-J{\"o}rg Kreowski},
  title		= {Filtering Hyperedge-Replacement Languages Through
		  Compatible Properties},
  editor	= {M. Nagl},
  booktitle	= {Graph-Theoretic Concepts in Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {411},
  pages		= {107--120},
  year		= {1990},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Habel-Kreowski:91,
  author	= {Annegret Habel and Hans-J{\"o}rg Kreowski},
  title		= {{Collage Grammars}},
  editor	= {Hartmut Ehrig and Hans-J{\"o}rg Kreowski and Grzegorz
		  Rozenberg},
  booktitle	= {Proc.\ 4th. Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {532},
  pages		= {411--429},
  year		= {1991},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Habel-Plump:95,
  author	= {Annegret Habel and Detlef Plump},
  title		= {Unification, Rewriting, and Narrowing on Term Graphs},
  booktitle	= {SEGRAGRA'95, Joint COMPUGRAPH/SEMAGRAPH Workshop on Graph
		  Rewriting and Computation},
  series	= {Electronic Notes in Theoretical Computer Science},
  volume	= {2},
  year		= {1995},
  publisher	= {Elsevier},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Habel-Plump:96,
  author	= {Annegret Habel and Detlef Plump},
  title		= {Graph Unification and Matching},
  editor	= {J. Cuny and H. Ehrig and G. Engels and G. Rozenberg},
  booktitle	= {Proc. Fifth Intl. Workshop on Graph Grammars and Their
		  Application to Comp. Sci.},
  series	= {Lecture Notes in Computer Science},
  volume	= {1073},
  pages		= {75--88},
  year		= {1996},
  publisher	= {Springer},
  added		= {1996-07-08-16-34-22}
}

@Article{	  Habel-Plump:96b,
  author	= {Habel, Annegret and Plump, Detlef},
  title		= {Term Graph Narrowing},
  journal	= {Mathematical Structures in Computer Science},
  volume	= {6},
  pages		= {649--676},
  year		= {1996},
  added		= {1997-09-01-16-46-57}
}

@TechReport{	  Habel-Plump:96c,
  author	= {Habel, Annegret and Plump, Detlef},
  title		= {Term Graph Narrowing},
  year		= {1996},
  institution	= {Universit\"at Hildesheim},
  type		= {Report~14/96},
  added		= {1997-09-01-19-34-43}
}

@TechReport{	  Habel-Plump:97,
  author	= {Annegret Habel and Detlef Plump},
  title		= {Completeness of Narrowing in Non-copying Implementations},
  number	= {19/97},
  year		= {1997},
  institution	= {Universit\"at Hildesheim, Institut f\"ur Informatik},
  type		= {Informatik-Bericht},
  added		= {1998-01-05-18-25-23}
}

@TechReport{	  Habel:80,
  author	= {Annegret Habel},
  title		= {{Concurrency in Graph-Grammatiken}},
  number	= {80-11},
  year		= {1980},
  institution	= {Berlin},
  added		= {1996-03-13-10-09-20}
}

@Misc{		  Habel:81,
  author	= {Annegret Habel},
  title		= {{Komposition und Dekomposition von Produktionen zur
		  Manipulation von Graphen}},
  year		= {1981},
  note		= {Master thesis, Berlin},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Habel:89,
  author	= {Annegret Habel},
  title		= {Graph-Theoretic Properties Compatible with Graph
		  Derivations},
  editor	= {J. van Leeuwen},
  booktitle	= {Proc.\ Graph-Theoretic Concepts in Computer Science
		  ({WG}'88)},
  series	= {Lecture Notes in Computer Science},
  volume	= {344},
  pages		= {11--29},
  year		= {1989},
  publisher	= {Springer},
  added		= {1996-03-13-10-09-20}
}

@PhDThesis{	  Habel:89b,
  author	= {Annegret Habel},
  title		= {Hyperedge Replacement: Grammars and Languages},
  year		= {1989},
  school	= {Bremen},
  added		= {1996-03-13-10-09-20}
}

@Book{		  Habel:92,
  author	= {Annegret Habel},
  title		= {Hyperedge Replacement: Grammars and Languages},
  series	= {Lecture Notes in Computer Science},
  volume	= {643},
  year		= {1992},
  publisher	= {Springer-Verlag},
  address	= {Berlin},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Habel:92b,
  author	= {Annegret Habel},
  title		= {Hypergraph Grammars: Transformational and Algorithmic
		  Aspects},
  journal	= {Journal of Information Processing and Cybernetics EIK},
  volume	= {28},
  pages		= {241--277},
  year		= {1992},
  added		= {1996-03-13-10-09-20}
}

@Book{		  Harary:69,
  author	= {Frank Harary},
  title		= {Graph Theory},
  year		= {1969},
  publisher	= {Addison-Wesley},
  address	= {Reading, Mass.},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Harel:88,
  author	= {David Harel},
  title		= {On Visual Formalisms},
  journal	= {Communications of the Association for Computing
		  Machinery},
  volume	= {31(5)},
  pages		= {514--530},
  year		= {1988},
  added		= {1996-03-13-10-09-20}
}

@Book{		  Hartsfield-Ringel:90,
  author	= {Nora Hartsfield and Gerhard Ringel},
  title		= {Pearls in Graph Theory. {A} Comprehensive Introduction},
  year		= {1990},
  publisher	= {Academic Press},
  address	= {Boston},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Heckel-Ehrig-Wolter.ea:97,
  author	= {Heckel, R. and Ehrig, H. and Wolter, U. and Corradini,
		  A.},
  title		= {Double-Pullback Transitions and Coalgebraic Loose
		  Semantics for Graph Transformation Systems},
  journal	= {Applied Categorical Structures},
  year		= {1997},
  note		= {Submitted},
  added		= {1998-01-22-10-35-50}
}

@InProceedings{	  Heckel-Ehrig-Wolter.ea:97b,
  author	= {Heckel, R. and Ehrig, H. and Wolter, U. and Corradini,
		  A.},
  title		= {Integrating the Specification Techniques of Graph
		  Transformation and Temporal Logic},
  booktitle	= {Proc. of MFCS'97, Bratislava},
  series	= {LNCS},
  volume	= {1295},
  year		= {1997},
  publisher	= {Springer Verlag},
  added		= {1998-01-22-10-35-50}
}

@TechReport{	  Heckel-Ehrig-Wolter.ea:97c,
  author	= {Heckel, R. and Ehrig, H. and Wolter, U. and Corradini,
		  A.},
  title		= {Loose Semantics and Constraints for Graph Transformation
		  Systems},
  number	= {97-07},
  year		= {1997},
  institution	= {TU Berlin},
  note		= {{\tt
		  http://www.cs.tu-berlin.de/cs/ifb/TechnBerichteListe.html}},
  added		= {1998-01-22-10-35-50}
}

@InProceedings{	  Heimann-Joeris-Krapp.ea:95,
  author	= {P. Heimann and G. Joeris and C.-A. Krapp and B.
		  Westfechtel},
  title		= {A Programmed Graph Rewriting System for Software Process
		  Management},
  booktitle	= {Proceedings Joint COMPUGRAPH/SEMAGRAPH Workshop on Graph
		  Rewriting and Computation (SEGRAGRA '95)},
  series	= {Electronic Notes in Theoretical Computer Science},
  volume	= {2},
  year		= {1995},
  added		= {1996-08-02-14-49-29}
}

@MastersThesis{	  Herbrecht:89,
  author	= {Herbrecht, R.},
  title		= {{Ein Graphgrammatikeditor}},
  year		= {1989},
  address	= {RWTH Aachen},
  type		= {Diplomarbeit},
  school	= {Lehrstuhl f{\"u}r Informatik III},
  added		= {1996-11-28-18-33-07}
}

@Book{		  Herrlich-Strecker:73,
  author	= {Horst Herrlich and George Strecker},
  title		= {Category Theory},
  year		= {1973},
  publisher	= {Allyn and Bacon},
  address	= {Boston},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Hess-Mayoh:87,
  author	= {L. Hess and Brian H. Mayoh},
  title		= {{Graphics and their Grammars}},
  editor	= {Hartmut Ehrig and Manfred Nagl and Grzegorz Rozenberg and
		  Azriel Rosenfeld},
  booktitle	= {Proc.\ 3rd Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {291},
  pages		= {232--249},
  year		= {1987},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Hess-Mayoh:90,
  author	= {L. Hess and B. Mayoh},
  title		= {The Four Musicians: Analogies and Experts Systems},
  editor	= {H. Erhig and H.-J. Kreowski and G. Rozenberg},
  booktitle	= {Graph Grammars and Their Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  number	= {532},
  pages		= {430--445},
  year		= {1990},
  publisher	= {Springer-Verlag},
  added		= {1996-04-16-07-34-15}
}

@InProceedings{	  Hess-Mayoh:91,
  author	= {L. Hess and Brian H. Mayoh},
  title		= {{The Four Musicians: Analogies and Experts Systems---A
		  Graphic Approach}},
  editor	= {Hartmut Ehrig and Hans-J{\"o}rg Kreowski and Grzegorz
		  Rozenberg},
  booktitle	= {Proc.\ 4th. Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {532},
  pages		= {430--445},
  year		= {1991},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Hesse:79,
  author	= {Wolfgang Hesse},
  title		= {{Two-Level Graph Grammars}},
  editor	= {Volker Claus and Hartmut Ehrig and Grzegorz Rozenberg},
  booktitle	= {Proc.\ 1st Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science and Biology},
  series	= {Lecture Notes in Computer Science},
  volume	= {73},
  pages		= {255--269},
  year		= {1979},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@Misc{		  Himsolt:88,
  author	= {Michael Himsolt},
  title		= {{Entwicklung eines Grapheneditors}},
  year		= {1988},
  note		= {Master thesis, Universit{\"a}t Passau},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Himsolt:89,
  author	= {Michael Himsolt},
  title		= {{GraphEd}: An Interactive Graph Editor},
  editor	= {B. Monien and R. Cori},
  booktitle	= {STACS'89},
  series	= {Lecture Notes in Computer Science},
  volume	= {349},
  pages		= {532--533},
  year		= {1989},
  added		= {1996-03-13-10-09-20}
}

@Manual{	  Himsolt:90,
  author	= {Michael Himsolt},
  title		= {{GraphEd User Manual}},
  year		= {1990},
  school	= {Universit{\"a}t Passau},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Himsolt:91,
  author	= {Michael Himsolt},
  title		= {{GraphEd: An Interactive Tool for Developing Graph
		  Grammars}},
  editor	= {Hartmut Ehrig and Hans-J{\"o}rg Kreowski and Grzegorz
		  Rozenberg},
  booktitle	= {Proc.\ 4th. Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {532},
  pages		= {61--65},
  year		= {1991},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@PhDThesis{	  Himsolt:93,
  author	= {Michael Himsolt},
  title		= {{Konzeption und Implementierung von Grapheditoren}},
  year		= {1993},
  school	= {Universit{\"a}t Passau},
  added		= {1996-03-13-10-09-20}
}

@Misc{		  Himsolt:95,
  author	= {Michael Himsolt},
  title		= {Hierarchical Graphs for Graph Grammars},
  year		= {1995},
  added		= {1996-03-13-10-09-20}
}

@Misc{		  Hinrichs:92,
  author	= {Renate Hinrichs},
  title		= {{Konfluente Graphgrammatiken mit Einbettungstiefe $k>1$}},
  year		= {1992},
  note		= {Master thesis, Universit{\"a}t Passau},
  added		= {1996-03-13-10-09-20}
}

@MastersThesis{	  Hoefer:92,
  author	= {H{\"o}fer, F.},
  title		= {{Inkrementelle Attributauswertung in Graphausdr{\"u}cken}},
  year		= {1992},
  address	= {RWTH Aachen},
  type		= {Diplomarbeit},
  school	= {Lehrstuhl f{\"u}r Informatik III},
  added		= {1996-11-28-18-33-07}
}

@InProceedings{	  Hoefting-Wanke-Balmosan.ea:93,
  author	= {Franz Hoefting and Egon Wanke and Aurel Balmo\^{s}an and
		  Curd Bergmann},
  title		= {{\sl 1st Grade} --- {A} System for Implementation, Testing
		  and Animation of Graph Algorithms},
  editor	= {P. Enjalbert and A. Finkel and K. W. Wagner},
  booktitle	= {STACS'93},
  series	= {Lecture Notes in Computer Science},
  volume	= {665},
  pages		= {606--607},
  year		= {1993},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Hoffmann-Main:90,
  author	= {J. Hoffmann and M. G. Main},
  title		= {Results on {NLC} Grammars with One-Letter Terminal
		  Alphabets},
  journal	= {Theoretical Computer Science},
  volume	= {73},
  pages		= {279--294},
  year		= {1990},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Hoffmann-Plump:89,
  author	= {B. Hoffmann and D. Plump},
  title		= {Jungle evaluation for efficient term rewriting},
  editor	= {J. Grabowski et al.},
  booktitle	= {Algebraic and Logic Programming, {V}ol. 49},
  pages		= {191--203},
  year		= {1989},
  publisher	= {Akademie-Verlag},
  address	= {Berlin},
  note		= {{Also in: Lecture Notes in Computer Science 343, 1989}},
  added		= {1996-03-28-11-35-01}
}

@Article{	  Hoffmann-Plump:91,
  author	= {Berthold Hoffmann and Detlef Plump},
  title		= {Implementing Term Rewriting by Jungle Evaluation},
  journal	= {{RAIRO} Theoretical Informatics and Applications},
  volume	= {25(5)},
  pages		= {445--472},
  year		= {1991},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Hoffmann:83,
  author	= {Berthold Hoffmann},
  title		= {{Modelling Compiler Generation by Graph Grammars}},
  editor	= {Hartmut Ehrig and Manfred Nagl and Grzegorz Rozenberg},
  booktitle	= {Proc.\ 2nd Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {153},
  pages		= {159--171},
  year		= {1983},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@Article{	  Hohenstein-Engels:92,
  author	= {Uwe Hohenstein and Gregor Engels},
  title		= {{SQL/EER} --- Syntax and Semantics of an
		  Entity-Relationship-Based Query Language},
  journal	= {Information Systems},
  volume	= {17},
  pages		= {209--242},
  year		= {1992},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Hopcroft-Tarjan:73,
  author	= {John E. Hopcroft and Robert E. Tarjan},
  title		= {Dividing a Graph into Triconnected Components},
  journal	= {SIAM Journal on Computing},
  volume	= {2(3)},
  pages		= {135--158},
  year		= {1973},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Hotz-Kolla-Molitor:87,
  author	= {G{\"u}nter Hotz and Reiner Kolla and Paul Molitor},
  title		= {{On Network Algebras and Recursive Equations}},
  editor	= {Hartmut Ehrig and Manfred Nagl and Grzegorz Rozenberg and
		  Azriel Rosenfeld},
  booktitle	= {Proc.\ 3rd Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {291},
  pages		= {250--261},
  year		= {1987},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@TechReport{	  Hudson:87,
  author	= {S.E. Hudson},
  title		= {Incremental attribute evaluation: an algorithm for lazy
		  evaluation in graphs},
  number	= {87-20},
  year		= {1987},
  institution	= {University of Arizona},
  added		= {1996-08-02-14-49-29}
}

@Book{		  Humphrey:89,
  author	= {Watts S. Humphrey},
  title		= {Managing the Software Process},
  series	= {SEI Series in Software Engineering},
  year		= {1989},
  publisher	= {Addison Wesley},
  address	= {Reading, MA},
  added		= {1996-08-02-14-49-29}
}

@InCollection{	  ILitovsky-YMetivier:92,
  author	= {I.~Litovsky and Y.~Metivier},
  title		= {Computing Trees with Graph Rewriting Systems with
		  Priorities},
  editor	= {M.~Nivat and A.~Podelski},
  booktitle	= {Tree Automata and Languages},
  pages		= {115--139},
  year		= {1992},
  publisher	= {Elsevier},
  added		= {2000-05-23-18-31-23}
}

@Article{	  JDassow:83,
  author	= {J.~Dassow},
  title		= {On some extensions of Russian Parallel Context-free
		  Grammars},
  journal	= {Acta Cybernetica},
  volume	= {6},
  pages		= {355--360},
  year		= {1983},
  added		= {2000-05-23-18-31-23}
}

@InProceedings{	  JEngelfriet-GRozenberg:97,
  author	= {J.~Engelfriet and G.~Rozenberg},
  title		= {Node Replacement Graph Grammars},
  editor	= {G.Rozenberg},
  booktitle	= {Handbook of Graph Grammars and Computing by Graph
		  Transformation},
  series	= {},
  volume	= {1: Foundations},
  pages		= {},
  year		= {1997},
  publisher	= {World Scientific},
  added		= {1998-01-22-10-35-50}
}

@TechReport{	  JEngelfriet-HVogler:96,
  author	= {J.~Engelfriet and H.~Vogler},
  title		= {The equivalence of bottom-up and top-down tree-to-graph
		  transducers},
  number	= {TUD/FI96/17},
  year		= {1996},
  month		= oct,
  institution	= {Technical University of Dresden},
  address	= {},
  type		= {Technical Report},
  added		= {1998-01-22-10-35-50}
}

@InProceedings{	  JEngelfriet:97,
  author	= {J.~Engelfriet},
  title		= {Context-Free Graph Grammars},
  editor	= {G.~Rozenberg and A.~Salomaa},
  booktitle	= {Handbook of Formal Languages},
  series	= {},
  volume	= {3: Beyond Words},
  pages		= {},
  year		= {1997},
  publisher	= {Springer-Verlag},
  added		= {1998-01-22-10-35-50}
}

@Article{	  JGruska:73,
  author	= {J.~Gruska},
  title		= {Generalized Context free Grammars},
  journal	= {Acta Cybernetica},
  volume	= {2},
  pages		= {35--38},
  year		= {1973},
  added		= {2000-05-23-18-31-23}
}

@Article{	  JHagauer:82,
  author	= {J.~Hagauer},
  title		= {On Form Equivalence of Deterministic Pure Grammar Forms},
  journal	= {Theoretical Computer Science},
  volume	= {18},
  pages		= {69--87},
  year		= {1982},
  publisher	= {Elsevier/North Holland},
  added		= {2000-05-23-18-31-23}
}

@TechReport{	  JHage-THarju:97,
  author	= {J.~Hage and T.~Harju},
  title		= {The size of switching classes with skew gains},
  number	= {97--02},
  year		= {1997},
  institution	= {Leiden University, Department of Computer Science},
  type		= {Tech.Report},
  added		= {1998-01-22-10-35-50},
  url		= {http://www.wi.leidenuniv.nl/TechRep/tr97-02.html}
}

@MastersThesis{	  JHolle:97,
  author	= {J.~Holle},
  title		= {Ein Generator f{\"u}r integrierte Werkzeuge am Beispiel
		  der objekt-relationalen Datenbank-Schema-Integration},
  year		= {1997},
  school	= {Fachbereich Informatik, Universit{\"a}t-Gesamthochschule
		  Paderborn},
  added		= {2000-05-23-18-31-23}
}

@Book{		  JHromkovic-OSykora:98,
  title		= {WG'98: 24th International Workshop on Graph Theoretic
		  Concepts in Computer Science},
  editor	= {J.~Hromkovic and O.~Sykora},
  series	= {Lecture Notes in Computer Science},
  volume	= {1517},
  year		= {1998},
  publisher	= {Springer-Verlag},
  address	= {Berlin},
  note		= {Continuation of the WG {\em Fachtagung}. The Workshop
		  Series continues also in 1999 and 2000, but seems to become
		  less and less important for the Graph Transformation
		  community who is about to establish more and more of its
		  own conferences},
  added		= {2000-05-23-18-31-23}
}

@InProceedings{	  JJahnke-WSchaefer-AZuendorf:96,
  author	= {J.~Jahnke and W.~Sch{\"a}fer and A.~Z{\"u}ndorf},
  title		= {A Design Environment for Migrating Relational to Object
		  Oriented Database Systems},
  booktitle	= {Proceedings of the International Conference on Software
		  Maintenance},
  pages		= {163--170},
  year		= {1996},
  publisher	= {IEEE Computer Society Press},
  added		= {2000-05-23-18-31-23}
}

@Book{		  JMuehlbacher:77,
  title		= {WG'77: 3. Fachtagung {\"u}ber Graphentheoretische Konzepte
		  der Informatik},
  editor	= {J.~M{\"u}hlbacher},
  series	= {Berichte zur Praktischen Informatik},
  volume	= {8},
  year		= {1977},
  publisher	= {Hanser-Verlag},
  address	= {M{\"u}nchen},
  added		= {2000-05-23-18-31-23}
}

@Book{		  JMuehlbacher:81,
  title		= {WG'81: 7th Conference on Graph Theoretic Concepts in
		  Computer Science},
  editor	= {J.~M{\"u}hlbacher},
  year		= {1981},
  publisher	= {Hanser-Verlag},
  address	= {M{\"u}nchen},
  note		= {Continuation of the WG {\em Fachtagung}},
  added		= {2000-05-23-18-31-23}
}

@TechReport{	  JMueller:97,
  author	= {J.~M{\"u}ller},
  title		= {A non-categorical Characterisation of sequential
		  Independence for algebraic Graph Rewriting, and some
		  Applications},
  series	= {Forschungsberichte des Fachbereichs Informatik},
  number	= {97-18},
  year		= {1997},
  institution	= {Technische Universit{\"a}t Berlin},
  added		= {2000-05-23-18-31-23},
  issn		= {1436-9915}
}

@TechReport{	  JMueller:97b,
  author	= {J.~M{\"u}ller},
  title		= {Shifting Derivations of non-injective Rules in the
		  algebraic Graph Rewriting Approaches},
  series	= {Forschungsberichte des Fachbereichs Informatik},
  number	= {97-16},
  year		= {1997},
  institution	= {Technische Universit{\"a}t Berlin},
  added		= {2000-05-23-18-31-23},
  issn		= {1436-9915}
}

@InProceedings{	  JMylopoulos:72,
  author	= {J.~Mylopoulos},
  title		= {On the Relation of Graph Grammars and Graph Automata},
  booktitle	= {Proceedings of the 13th Symposium on Switching and
		  Automata Theory},
  pages		= {108--120},
  year		= {1972},
  added		= {2000-05-23-18-31-23}
}

@TechReport{	  JPadberg-CErmel:97,
  author	= {J.~Padberg and C.~Ermel},
  title		= {Formalisation of Variables in algebraic High Level Nets:
		  Comparison of different Approaches},
  series	= {Forschungsberichte des Fachbereichs Informatik},
  number	= {97-19},
  year		= {1997},
  institution	= {Technische Universit{\"a}t Berlin},
  added		= {2000-05-23-18-31-23},
  issn		= {1436-9915}
}

@TechReport{	  JPadberg-HEhrig-MGajewsky:97,
  author	= {J.~Padberg and H.~Ehrig and M.~Gajewsky},
  title		= {Action Nets and Abstract Statecharts in the Theory of High
		  Level Replacement Systems},
  series	= {Forschungsberichte des Fachbereichs Informatik},
  number	= {97-14},
  year		= {1997},
  institution	= {Technische Universit{\"a}t Berlin},
  added		= {2000-05-23-18-31-23},
  issn		= {1436-9915}
}

@TechReport{	  JPadberg:93,
  author	= {J.~Padberg},
  title		= {Survey of High Level Replacement Systems},
  series	= {Forschungsberichte des Fachbereichs Informatik},
  number	= {93-8},
  year		= {1993},
  institution	= {Technische Universit{\"a}t Berlin},
  added		= {2000-05-23-18-31-23},
  issn		= {1436-9915}
}

@PhDThesis{	  JPadberg:96,
  author	= {J.~Padberg},
  title		= {Abstract Petri Nets: Uniform Approach and Rule based
		  Refinement},
  year		= {1996},
  school	= {Fachbereich Informatik, Technische Universit{\"a}t Berlin},
  note		= {Published by Shaker-Verlag Aachen},
  added		= {2000-05-23-18-31-23}
}

@Article{	  JPfaltz:72,
  author	= {J.~Pfaltz},
  title		= {Graph Structures},
  journal	= {Journal of the ACM},
  volume	= {19},
  pages		= {411--422},
  year		= {1972},
  added		= {2000-05-23-18-31-23}
}

@Booklet{	  JRekers-ASchuerr,
  author	= {J.~Rekers and A.~Sch{\"u}rr},
  title		= {Defining and Parsing Visual Languages with Layered Graph
		  Grammars},
  note		= {Private Pre-Print of their Publication in the Journal of
		  Visual Languages and Computing},
  added		= {2000-05-23-18-31-23}
}

@TechReport{	  JRekers-ASchuerr:95,
  author	= {J.~Rekers and A.~Sch{\"u}rr},
  title		= {A Parsing Algorithm for Context Sensitive Graph Grammars},
  number	= {95-05},
  year		= {1995},
  month		= {Jan},
  institution	= {Vakgroep Informatica, Rijks-Universiteit te Leiden},
  added		= {2000-05-23-18-31-23}
}

@Article{	  JRekers-ASchuerr:96,
  author	= {J.~Rekers and A.~Sch{\"u}rr},
  title		= {Defining and Parsing visual Languages with Layered Graph
		  Grammars},
  journal	= {Journal of Visual Languages and Computing},
  volume	= {7},
  number	= {3},
  year		= {1996/97},
  added		= {2000-05-23-18-31-23}
}

@Article{	  JUllman:76,
  author	= {J.~Ullman},
  title		= {An Algorithm for Subgraph Isomorphism},
  journal	= {Journal of the ACM},
  volume	= {23},
  pages		= {31--42},
  year		= {1976},
  added		= {2000-05-23-18-31-23}
}

@MastersThesis{	  JVermeulen:96,
  author	= {J.~Vermeulen},
  title		= {Viability of a Parsing Algorithm for Context Sensitive
		  Graph Grammars: An Implementation of Rekers' and
		  Sch{\"u}rr's Graph Parsing Algorithm with several Runtime
		  Improvements based on Set Theoretic Considerations},
  year		= {1996},
  school	= {Vakgroep Informatica, Rijks-Universiteit te Leiden},
  added		= {2000-05-23-18-31-23}
}

@PhDThesis{	  Jackel:86,
  author	= {M Jackel},
  title		= {Formal Specification of Ada's Concurrent Constructs by
		  Graph Grammars},
  year		= {1986},
  school	= {Osnabr{\"u}ck},
  added		= {1996-03-13-10-09-20}
}

@PhDThesis{	  Jackel:86b,
  author	= {Jackel, M.},
  title		= {{Formale Spezifikation konkurrierender ADA-konstrukte mit
		  Graphgrammatiken}},
  year		= {1986},
  type		= {Dissertation},
  school	= {Universit{\"a}t Osnabr{\"u}ck},
  added		= {1996-11-28-18-33-07}
}

@InProceedings{	  Jackel:87,
  author	= {Manfred Jackel},
  title		= {{ADA-Concurrency specified by Graph Grammars}},
  editor	= {Hartmut Ehrig and Manfred Nagl and Grzegorz Rozenberg and
		  Azriel Rosenfeld},
  booktitle	= {Proc.\ 3rd Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {291},
  pages		= {262--279},
  year		= {1987},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@Book{		  Janning:92,
  author	= {Janning, T.},
  title		= {{Requirements Engineering und Programmieren im
		  Gro{\ss}en}},
  year		= {1992},
  publisher	= {Deutscher Universit{\"a}ts-Verlag, Wiesbaden},
  added		= {1996-11-28-18-33-07}
}

@TechReport{	  Janssens-Kreowski-Rozenberg.ea:82,
  author	= {Dirk Janssens and Hans-J{\"o}rg Kreowski and Grzegorz
		  Rozenberg and Hartmut Ehrig},
  title		= {Concurrency of Node-Label-Controlled Graph
		  Transformations},
  number	= {82-38},
  year		= {1982},
  institution	= {Antwerp},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Janssens-Lens-Rozenberg:93,
  author	= {Dirk Janssens and M. Lens and Grzegorz Rozenberg},
  title		= {Computation Graphs for Actor Grammars},
  journal	= {Journal of Computer and System Sciences},
  volume	= {46},
  pages		= {60--90},
  year		= {1993},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Janssens-Mens:96,
  author	= {Dirk Janssens and T. Mens},
  title		= {Abstract Semantics for {ESM} Systems},
  journal	= {Fundamenta Informaticae},
  volume	= {XXVII},
  year		= {1996},
  note		= {To appear},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Janssens-Rozenberg-Verraedt:82,
  author	= {Dirk Janssens and Grzegorz Rozenberg and R. Verraedt},
  title		= {On Sequential and Parallel Node Rewriting Graph Grammars,
		  Part 1},
  journal	= {Computer Graphics and Image Processing},
  volume	= {18},
  pages		= {279--301},
  year		= {1982},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Janssens-Rozenberg-Verraedt:83,
  author	= {Dirk Janssens and Grzegorz Rozenberg and R. Verraedt},
  title		= {On Sequential and Parallel Node Rewriting Graph Grammars,
		  Part 2},
  journal	= {Computer Graphics and Image Processing},
  volume	= {23},
  pages		= {295--312},
  year		= {1983},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Janssens-Rozenberg-Welzl:86,
  author	= {Dirk Janssens and Grzegorz Rozenberg and Emo Welzl},
  title		= {The Bounded Degree Problem for {NLC} Grammars is
		  Decidable},
  journal	= {Journal of Computer and System Sciences},
  volume	= {33},
  pages		= {415--422},
  year		= {1986},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Janssens-Rozenberg:80,
  author	= {Dirk Janssens and Grzegorz Rozenberg},
  title		= {On the Structure of Node-Label-Controlled Graph
		  Languages},
  journal	= {Information Sciences},
  volume	= {20},
  pages		= {191--216},
  year		= {1980},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Janssens-Rozenberg:80b,
  author	= {Dirk Janssens and Grzegorz Rozenberg},
  title		= {Restrictions, Extensions and Variations of {NLC}
		  Grammars},
  journal	= {Information Sciences},
  volume	= {20},
  pages		= {217--244},
  year		= {1980},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Janssens-Rozenberg:81,
  author	= {Dirk Janssens and Grzegorz Rozenberg},
  title		= {A Characterization of Context-Free String Languages by
		  Directed Node Label Controlled Graph Grammars},
  journal	= {Acta Informatica},
  volume	= {16},
  pages		= {63--85},
  year		= {1981},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Janssens-Rozenberg:81b,
  author	= {Dirk Janssens and Grzegorz Rozenberg},
  title		= {Decision Problems for Node Label Controlled Graph
		  Grammars},
  journal	= {Journal of Computer and System Sciences},
  volume	= {22},
  pages		= {144--177},
  year		= {1981},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Janssens-Rozenberg:81c,
  author	= {Dirk Janssens and Grzegorz Rozenberg},
  title		= {Decision Problems for Node Label Controlled Graph
		  Grammars},
  series	= {Lecture Notes in Computer Science},
  volume	= {22},
  pages		= {144--177},
  year		= {1981},
  publisher	= {Springer},
  added		= {1996-03-28-11-35-01}
}

@Article{	  Janssens-Rozenberg:82,
  author	= {Dirk Janssens and Grzegorz Rozenberg},
  title		= {Graph Grammars with Neighbourhood-Controlled Embedding},
  journal	= {Theoretical Computer Science},
  volume	= {21},
  pages		= {55--74},
  year		= {1982},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Janssens-Rozenberg:83,
  author	= {Dirk Janssens and Grzegorz Rozenberg},
  title		= {A Survey of {NLC} Grammars},
  editor	= {G. Ausiello and M. Protasi},
  booktitle	= {CAAP '83},
  series	= {Lecture Notes in Computer Science},
  volume	= {159},
  pages		= {114--128},
  year		= {1983},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Janssens-Rozenberg:83b,
  author	= {Dirk Janssens and Grzegorz Rozenberg},
  title		= {{Graph Grammars with Node-Label Controlled Rewriting and
		  Embedding}},
  editor	= {Hartmut Ehrig and Manfred Nagl and Grzegorz Rozenberg},
  booktitle	= {Proc.\ 2nd Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {153},
  pages		= {186--205},
  year		= {1983},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Janssens-Rozenberg:83c,
  author	= {Dirk Janssens and Grzegorz Rozenberg},
  title		= {{Hypergraph Systems Generating Graph Languages}},
  editor	= {Hartmut Ehrig and Manfred Nagl and Grzegorz Rozenberg},
  booktitle	= {Proc.\ 2nd Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {153},
  pages		= {172--185},
  year		= {1983},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@Article{	  Janssens-Rozenberg:86,
  author	= {Dirk Janssens and Grzegorz Rozenberg},
  title		= {Neighbourhood-Uniform {NLC} Grammars},
  journal	= {Computer Vision, Graphics, and Image Processing},
  volume	= {35},
  pages		= {131--151},
  year		= {1986},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Janssens-Rozenberg:87,
  author	= {Dirk Janssens and Grzegorz Rozenberg},
  title		= {{Basic Notions of Actor Grammars}},
  editor	= {Hartmut Ehrig and Manfred Nagl and Grzegorz Rozenberg and
		  Azriel Rosenfeld},
  booktitle	= {Proc.\ 3rd Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {291},
  pages		= {280--298},
  year		= {1987},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@Article{	  Janssens-Rozenberg:89,
  author	= {Dirk Janssens and Grzegorz Rozenberg},
  title		= {Actor Grammars},
  journal	= {Mathematical Systems Theory},
  volume	= {22},
  pages		= {75--107},
  year		= {1989},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Janssens-Rozenberg:91,
  author	= {Dirk Janssens and Grzegorz Rozenberg},
  title		= {{Structured Transformations and Computation Graphs for
		  Actor Grammars}},
  editor	= {Hartmut Ehrig and Hans-J{\"o}rg Kreowski and Grzegorz
		  Rozenberg},
  booktitle	= {Proc.\ 4th. Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {532},
  pages		= {446--460},
  year		= {1991},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@TechReport{	  Janssens-Verlinden:97,
  author	= {D. Janssens and N. Verlinden},
  title		= {Reasoning on Graph-Rewriting Processes},
  number	= {97--07},
  year		= {1997},
  institution	= {University of Antwerp - UIA, dept. of Math. and Comp.
		  Sci.},
  added		= {1998-01-22-10-35-50}
}

@PhDThesis{	  Janssens:83,
  author	= {Dirk Janssens},
  title		= {Node Label Controlled Graph Grammars},
  year		= {1983},
  school	= {Antwerp},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Janssens:93,
  author	= {Dirk Janssens},
  title		= {Equivalence of Computations in Actor Grammars},
  journal	= {Theoretical Computer Science},
  volume	= {109},
  pages		= {145--180},
  year		= {1993},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Janssens:94,
  author	= {Dirk Janssens},
  title		= {{EMS} Systems and the Composition of Their Computations},
  editor	= {Hans J{\"u}rgen Schneider and Hartmut Ehrig},
  booktitle	= {Graph Transformations in Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {776},
  pages		= {203--217},
  year		= {1994},
  added		= {1996-03-13-10-09-20}
}

@Unpublished{	  Janssens:95,
  author	= {Dirk Janssens},
  title		= {The Decomposition of {EMS} Computations},
  year		= {1995},
  note		= {Submitted for publication},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Janssens:96,
  author	= {Dirk Janssens},
  title		= {{The Decomposition of ESM Computations}},
  editor	= {Janice E. Cuny and Hartmut Ehrig and Gregor Engels and
		  Grzegorz Rozenberg},
  booktitle	= {Proc.\ 5th Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {1073},
  pages		= {271--287},
  year		= {1996},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Jeffs:87,
  author	= {Janice Jeffs},
  title		= {{Embedding Rule Independent Theory of Graph Grammars}},
  editor	= {Hartmut Ehrig and Manfred Nagl and Grzegorz Rozenberg and
		  Azriel Rosenfeld},
  booktitle	= {Proc.\ 3rd Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {291},
  pages		= {299--308},
  year		= {1987},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Jeltsch-Kreowski:91,
  author	= {Eric Jeltsch and Hans-J{\"o}rg Kreowski},
  title		= {{Grammatical Inference Based on Hyperedge Replacement}},
  editor	= {Hartmut Ehrig and Hans-J{\"o}rg Kreowski and Grzegorz
		  Rozenberg},
  booktitle	= {Proc.\ 4th. Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {532},
  pages		= {461--474},
  year		= {1991},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@TechReport{	  Jones-DSouza:92,
  author	= {C. V. Jones and K. D'Souza},
  title		= {Graph-Grammars for Minimum Cost Network Flow Modeling},
  year		= {1992},
  institution	= {Faculty of Business Administration, Simon Fraser
		  University},
  address	= {Burnaby (BC), V5A 1S6 CANADA},
  added		= {1996-06-13-16-37-07}
}

@TechReport{	  Jones-Krishnan:92,
  author	= {C. V. Jones and R. Krishnan},
  title		= {A Visual, Syntax-Directed Environment for Automated Model
		  Development},
  year		= {1992},
  institution	= {Faculty of Business Administration, Simon Fraser
		  University},
  address	= {Burnaby (BC), V5A 1S6 CANADA},
  added		= {1996-06-13-16-37-07}
}

@InProceedings{	  Jones:90,
  author	= {C. V. Jones},
  title		= {An Example Based Introduction to Graph-Based Modeling},
  booktitle	= {Proceedings of the Twenty-Third Annual Hawaii
		  International Conference on the System Sciences},
  pages		= {433--442},
  year		= {1990},
  publisher	= {IEEE Computer Society Press},
  address	= {Los Alamitos (CA)},
  added		= {1996-06-13-16-37-07}
}

@Article{	  Jones:90b,
  author	= {C. V. Jones},
  title		= {An Introduction to Graph-Based Modeling Systems, Part~{I}:
		  Overview},
  journal	= {ORSA Journal on Computing},
  volume	= {2},
  number	= {2},
  pages		= {136--151},
  year		= {1990},
  added		= {1996-06-13-16-37-07}
}

@Article{	  Jones:91,
  author	= {C. V. Jones},
  title		= {An Introduction to Graph-Based Modeling Systems,
		  Part~{II}: Graph-Grammars and the Implementation},
  journal	= {ORSA Journal on Computing},
  volume	= {3},
  number	= {3},
  pages		= {180--206},
  year		= {1991},
  added		= {1996-06-13-16-37-07}
}

@Article{	  Jones:92,
  author	= {C. V. Jones},
  title		= {Attributed Graphs, Graph-Grammars, and Structured
		  Modeling},
  journal	= {Annals of OR},
  volume	= {38},
  pages		= {281--324},
  year		= {1992},
  added		= {1996-06-13-16-37-07}
}

@Article{	  Jones:93,
  author	= {C. V. Jones},
  title		= {An Integrated Modeling Environment Based on Attributed
		  Graphs and Graph-Grammars},
  journal	= {Decision Support Systems},
  volume	= {10},
  pages		= {255--275},
  year		= {1993},
  added		= {1996-06-13-16-37-07}
}

@Article{	  Jones:95,
  author	= {C. V. Jones},
  title		= {Developments in Graph-based Modeling for Decision
		  Support},
  journal	= {Decision Support Systems},
  volume	= {13},
  number	= {1},
  pages		= {61--74},
  year		= {1995},
  added		= {1996-06-13-16-37-07}
}

@Book{		  JvanLeeuwen:88,
  title		= {WG'88: International Workshop on Graph Theoretic Concepts
		  in Computer Science},
  editor	= {J.~van~Leeuwen},
  series	= {Lecture Notes in Computer Science},
  volume	= {344},
  year		= {1988},
  publisher	= {Springer-Verlag},
  address	= {Berlin},
  note		= {Continuation of the WG {\em Fachtagung}},
  added		= {2000-05-23-18-31-23}
}

@Book{		  JvanLeeuwen:93,
  title		= {WG'93: 19th International Workshop on Graph Theoretic
		  Concepts in Computer Science},
  editor	= {J.~van~Leeuwen},
  series	= {Lecture Notes in Computer Science},
  volume	= {790},
  year		= {1993},
  publisher	= {Springer-Verlag},
  address	= {Berlin},
  note		= {Continuation of the WG {\em Fachtagung}},
  added		= {2000-05-23-18-31-23}
}

@Article{	  K-UWitt:81,
  author	= {K.-U.~Witt},
  title		= {Finite Graph Acceptors and Regular Graph Languages},
  journal	= {Information and Control},
  volume	= {50},
  number	= {3},
  pages		= {242--258},
  year		= {1981},
  publisher	= {Academic Press},
  added		= {2000-05-23-18-31-23}
}

@InProceedings{	  KCremer:98,
  author	= {K.~Cremer},
  title		= {A Tool supporting the Re-Design of Legacy Applications},
  editor	= {P.~Nesi and F.~Lehner},
  booktitle	= {Proceedings of the 2nd Euromicro Conference on Software
		  Maintenance and Re-Engineering},
  pages		= {142--148},
  year		= {1998},
  publisher	= {IEEE Computer Society Press},
  added		= {2000-05-23-18-31-23}
}

@PhDThesis{	  KCremer:99,
  author	= {K.~Cremer},
  title		= {Graphbasierte Werkzeuge zum Reverse-Engineering und
		  Re-Engineering},
  year		= {1999},
  school	= {Fakult{\"a}t f{\"u}r Mathematik, Naturwissenschaften und
		  Informatik, Rheinisch-Westf{\"a}lische Technische
		  Hochschule Aachen},
  note		= {To be published by Deutscher Universit{\"a}tsverlag,
		  Wiesbaden},
  added		= {2000-05-23-18-31-23}
}

@Article{	  KSalomon:78,
  author	= {K.~Salomon},
  title		= {String and Graph Grammar Characterizations of Bounded
		  Regular Languages},
  journal	= {International Journal of Computer and Information
		  Sciences},
  volume	= {7},
  number	= {1},
  pages		= {1--10},
  year		= {1978},
  publisher	= {Plenum Press},
  added		= {2000-05-23-18-31-23}
}

@Article{	  KWalter:76,
  author	= {K.~Walter},
  title		= {Grammar Forms and Grammar Homomorphisms},
  journal	= {Acta Informatica},
  volume	= {7},
  pages		= {75--93},
  year		= {1976},
  publisher	= {Springer-Verlag},
  added		= {2000-05-23-18-31-23}
}

@Article{	  KYamazaki:97,
  author	= {K.~Yamazaki},
  title		= {A Hierarchy of the Class of Apex NLC Graph Languages by
		  Bounds on the Number of Nonterminal Nodes in Productions},
  journal	= {Acta Informatica},
  volume	= {34},
  number	= {5},
  year		= {1997},
  publisher	= {Springer-Verlag},
  added		= {2000-05-23-18-31-23}
}

@InProceedings{	  Kajitani-Cho-Sarrafzadeh:95,
  author	= {Yoji Kajitani and Jun Dong Cho and Majid Sarrafzadeh},
  title		= {New Approximation Results on Graph Matching and Related
		  Problems},
  editor	= {W. {Mayr, Ernst} and Gunter Schmidt and Gottfried
		  Tinhofer},
  booktitle	= {Graph-Theoretic Concepts in Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {903},
  pages		= {343--358},
  year		= {1995},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Kaplan-Goering-Campbell:87,
  author	= {Simon M. Kaplan and Steven K. Goering and Roy H.
		  Campbell},
  title		= {{Supporting the Software Development Process with
		  Attributed NLC Graph Grammars}},
  editor	= {Hartmut Ehrig and Manfred Nagl and Grzegorz Rozenberg and
		  Azriel Rosenfeld},
  booktitle	= {Proc.\ 3rd Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {291},
  pages		= {309--325},
  year		= {1987},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Kaplan-Loyall-Goering:91,
  author	= {Simon M. Kaplan and Joseph. P. Loyall and Steven K.
		  Goering},
  title		= {{Specifying Concurrent Languages and Systems with
		  $\Delta$-Grammars}},
  editor	= {Hartmut Ehrig and Hans-J{\"o}rg Kreowski and Grzegorz
		  Rozenberg},
  booktitle	= {Proc.\ 4th. Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {532},
  pages		= {475--489},
  year		= {1991},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Kaul:83,
  author	= {Manfred Kaul},
  title		= {{Parsing of Graphs in Linear Time}},
  editor	= {Hartmut Ehrig and Manfred Nagl and Grzegorz Rozenberg},
  booktitle	= {Proc.\ 2nd Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {153},
  pages		= {206--218},
  year		= {1983},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@PhDThesis{	  Kaul:85,
  author	= {Kaul, M.},
  title		= {{Syntaxanalyse von Graphen durch
		  Pr{\"a}zedenzgraphgrammatiken}},
  year		= {1985},
  type		= {Dissertation},
  school	= {Universit{\"a}t Osnabr{\"u}ck},
  added		= {1996-11-28-18-33-07}
}

@PhDThesis{	  Kaul:86,
  author	= {M. Kaul},
  title		= {Syntaxanalyse von Graphen bei
		  Pr{\"a}zedenz-Graph-Grammatiken},
  year		= {1986},
  school	= {Passau},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Kaul:87,
  author	= {Manfred Kaul},
  title		= {{Practical Applications of Precedence Graph Grammars}},
  editor	= {Hartmut Ehrig and Manfred Nagl and Grzegorz Rozenberg and
		  Azriel Rosenfeld},
  booktitle	= {Proc.\ 3rd Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {291},
  pages		= {326--342},
  year		= {1987},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Kennaway-Klop-Sleep.ea:91,
  author	= {Richard Kennaway and Jan Willem Klop and Ronan Sleep and
		  Jan {de Vries}},
  title		= {Transfinite Reductions in Orthogonal Term Rewriting
		  Systems (extended Abstract)},
  editor	= {Ronald V. Book},
  booktitle	= {Rewriting techniquers and Applications},
  series	= {Lecture Notes in Computer Science},
  volume	= {488},
  pages		= {1--12},
  year		= {1991},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Kennaway:87,
  author	= {Richard Kennaway},
  title		= {On ``{O}n Graph Rewritings''},
  journal	= {Theoretical Computer Science},
  volume	= {52},
  pages		= {37--58},
  year		= {1987},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Kennaway:90,
  author	= {Richard Kennaway},
  title		= {Implementing Term Rewrite Languages in {DACTL}},
  journal	= {Theoretical Computer Science},
  volume	= {72},
  pages		= {225--249},
  year		= {1990},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Kennaway:91,
  author	= {Richard Kennaway},
  title		= {{Graph Rewriting in Some Categories of Partial
		  Morphisms}},
  editor	= {Hartmut Ehrig and Hans-J{\"o}rg Kreowski and Grzegorz
		  Rozenberg},
  booktitle	= {Proc.\ 4th. Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {532},
  pages		= {490--504},
  year		= {1991},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@TechReport{	  Kiesel-Schuerr-Westfechtel:92,
  author	= {N. Kiesel and A. Schuerr and B. Westfechtel},
  title		= {Design and Evaluation of {GRAS}, a Graph-Oriented Database
		  System for Engineering Applications},
  number	= {92-44},
  year		= {1992},
  institution	= {Lehrstuhl fur Informatik III, Technical University of
		  Aachen, Germany},
  added		= {1996-04-16-07-34-15}
}

@Article{	  Kiesel-Schuerr-Westfechtel:95,
  author	= {Norbert Kiesel and Andy Sch{\"u}rr and Bernhard
		  Westfechtel},
  title		= {{GRAS}, a Graph-Oriented (Software) Engineering Database
		  System},
  journal	= {Information Sciences},
  volume	= {20},
  number	= {1},
  pages		= {21--51},
  year		= {1995},
  publisher	= {Pergamon Press},
  added		= {1996-03-13-10-09-20}
}

@Unpublished{	  Kim-Jeong:95,
  author	= {Changwook Kim and Tae Eui Jeong},
  title		= {{HRNCE} Grammars --- {A} Hypergraph Generating System with
		  an {eNCE} Way of Rewriting},
  year		= {1995},
  note		= {Submitted for publication},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Kim-Jeong:96,
  author	= {Changwook Kim and Tae Eui Jeong},
  title		= {{HRNCE Grammars---A Hypergraph Generating System with an
		  eNCE Way of Rewriting}},
  editor	= {Janice E. Cuny and Hartmut Ehrig and Gregor Engels and
		  Grzegorz Rozenberg},
  booktitle	= {Proc.\ 5th Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {1073},
  pages		= {383--396},
  year		= {1996},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@Article{	  Kim-Jeong:99,
  author	= {Kim, C. and Jeong, T.E.},
  title		= {{HRNCE} Grammars - A Hypergraph Generating System with an
		  {eNCE} way of rewriting},
  journal	= {Theoretical Computer Science},
  volume	= {223},
  number	= {1--2},
  pages		= {143--178},
  year		= {1999},
  added		= {2000-01-11-16-06-01}
}

@Article{	  Kim-Lee:95,
  author	= {Changwook Kim and Dong Hoon Lee},
  title		= {Node Replacement Graph Languages Squeezed with Chains,
		  Trees, and Forests},
  journal	= {Information and Computation},
  volume	= {117},
  pages		= {63--77},
  year		= {1995},
  added		= {1996-03-13-10-09-20}
}

@InCollection{	  Kleene:56,
  author	= {S. C. Kleene},
  title		= {Representation of Events in Nerve Nets and Finite
		  Automata},
  editor	= {C. Shannon and J. McCarthy},
  booktitle	= {Automata Studies, Annals of Math. Studies 34},
  pages		= {3--40},
  year		= {1956},
  publisher	= {Princeton},
  address	= {New Jersey},
  added		= {1996-03-13-10-09-20}
}

@MastersThesis{	  Klein:93,
  author	= {Klein, P.},
  title		= {{Die Graphcodemaschine PROGRES}},
  year		= {1993},
  address	= {RWTH Aachen},
  type		= {Diplomarbeit},
  school	= {Lehrstuhl f{\"u}r Informatik III},
  added		= {1996-11-28-18-33-07}
}

@InProceedings{	  Klempien-Hinrichs:96,
  ATTENTION	= {newer record added: Jul 30, 1996},
  author	= {Klempien-Hinrichs, Renate},
  title		= {Node Replacement in Hypergraphs: Simulation of Hyperedge
		  Replacement, and Decidability of Confluence},
  booktitle	= {Graph Grammars and Their Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  year		= {1996},
  note		= {To appear},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Klempien-Hinrichs:96b,
  author	= {Renate Klempien-Hinrichs},
  title		= {{Node Replacement in Hypergraphs: Simulation of Hyperedge
		  Replacement, and Decidability of Confluence}},
  editor	= {Janice E. Cuny and Hartmut Ehrig and Gregor Engels and
		  Grzegorz Rozenberg},
  booktitle	= {Proc.\ 5th Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {1073},
  pages		= {397--411},
  year		= {1996},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@TechReport{	  Klempien-Hinrichs:97,
  author	= {R. Klempien-Hinrichs},
  title		= {Net Refinement by pullback rewriting},
  number	= {},
  year		= {1997},
  institution	= {LaBRI, University of Bordeaux},
  added		= {1998-01-22-10-35-50}
}

@InProceedings{	  Klempien-Hinrichs:98,
  author	= {{Klempien-Hinrichs}, Renate},
  title		= {Net Refinement by Pullback Rewriting},
  editor	= {M. Nivat},
  booktitle	= {Proc. Foundations of Software Science and Computation
		  Structures},
  series	= {Lecture Notes in Computer Science},
  volume	= {1378},
  pages		= {189--202},
  year		= {1998},
  publisher	= {Springer},
  added		= {1998-04-15-14-04-00}
}

@InProceedings{	  Koch-Fischer-Berthold:98,
  author	= {M. Koch and I. Fischer and M. Berthold},
  title		= {Showing the Equivalence of Two Training Algorithms},
  booktitle	= {Proceedings of the 1998 IEEE World Congress on
		  Computational Intelligence},
  volume	= {1},
  pages		= {447--456},
  year		= {1998},
  month		= may,
  address	= {Anchorage, Alaska},
  added		= {1999-02-08-15-43-38}
}

@TechReport{	  Koch:97,
  author	= {Koch, M.},
  title		= {Bedingte verteilte {G}raphtransformation und ihre
		  {A}nwendung auf verteilte {T}ransaktionen},
  number	= {97-11},
  year		= {1997},
  institution	= {Technical University of Berlin},
  added		= {1998-01-22-10-35-50},
  creatorofitem	= {gabi-970217}
}

@PhDThesis{	  Kohring:96,
  author	= {Kohring, C.},
  title		= {{Ausf{\"u}hrung von Anforderungsdefinitionen zum Rapid
		  Prototyping}},
  year		= {1996},
  address	= {RWTH Aachen},
  type		= {Dissertation},
  school	= {Lehrstuhl f{\"u}r Informatik III},
  added		= {1996-11-28-18-33-07}
}

@InProceedings{	  Korff-Ribeiro:96,
  author	= {Martin Korff and Leila Ribeiro},
  title		= {{Formal Relationship between Graph Grammars and Petri
		  Nets}},
  editor	= {Janice E. Cuny and Hartmut Ehrig and Gregor Engels and
		  Grzegorz Rozenberg},
  booktitle	= {Proc.\ 5th Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {1073},
  pages		= {288--303},
  year		= {1996},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Korff:91,
  author	= {Martin Korff},
  title		= {{Application of Graph Grammars to Rule-Based Systems}},
  editor	= {Hartmut Ehrig and Hans-J{\"o}rg Kreowski and Grzegorz
		  Rozenberg},
  booktitle	= {Proc.\ 4th. Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {532},
  pages		= {505--519},
  year		= {1991},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@TechReport{	  Korff:92,
  author	= {M. Korff},
  title		= {Algebraic transformation of equationally defined graph
		  structures},
  number	= {92/32},
  year		= {1992},
  institution	= {Technische Universit{\"a}t Berlin},
  added		= {1996-08-02-14-49-29}
}

@MastersThesis{	  Kossisng:92,
  author	= {Kossisng, P.},
  title		= {{Modellierung abstrakter Syntaxgraphen f{\"u}r EBNF}},
  year		= {1992},
  address	= {RWTH Aachen},
  type		= {Diplomarbeit},
  school	= {Lehrstuhl f{\"u}r Informatik III},
  added		= {1996-11-28-18-33-07}
}

@Article{	  Kreowski-Kuske-Schuerr:97,
  author	= {Kreowski, Hans-J\"org and Kuske, Sabine and Sch\"urr, Andy},
  title		= {Nested Graph Transformation Units},
  journal	= {International Journal of Software Engineering and
		  Knowledge Engineering},
  volume	= {7},
  pages		= {479--502},
  year		= {1997},
  added		= {1997-09-01-16-46-57}
}

@InProceedings{	  Kreowski-Kuske:96,
  author	= {Hans-J{\"o}rg Kreowski and Sabine Kuske},
  title		= {{On the Interleaving Semantics of Transformation Units---A
		  Step into GRACE}},
  editor	= {Janice E. Cuny and Hartmut Ehrig and Gregor Engels and
		  Grzegorz Rozenberg},
  booktitle	= {Proc.\ 5th Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {1073},
  pages		= {89--106},
  year		= {1996},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@Unpublished{	  Kreowski-Rozenberg:80,
  author	= {Hans-J{\"o}rg Kreowski and G. Rozenberg},
  title		= {Finite String Automata Recognizing Graph Languages},
  year		= {1980},
  note		= {Unpublished manuscript},
  added		= {1996-03-28-11-35-01}
}

@InProceedings{	  Kreowski-Rozenberg:81,
  author	= {Hans-J{\"o}rg Kreowski and Grzegorz Rozenberg},
  title		= {On the Constructive Description of Graph Languages
		  Accepted by Finite Automata},
  editor	= {J. Gruska and M. Chytil},
  booktitle	= {Mathematical Foundations of Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {118},
  pages		= {398--409},
  year		= {1981},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Kreowski-Rozenberg:84,
  author	= {Hans-J{\"o}rg Kreowski and Grzegorz Rozenberg},
  title		= {Note on Node-Rewriting Graph Grammars},
  journal	= {Information Processing Letters},
  volume	= {18},
  pages		= {21--24},
  year		= {1984},
  added		= {1996-03-13-10-09-20}
}

@TechReport{	  Kreowski-Rozenberg:88,
  author	= {H.-J. Kreowski and G. Rozenberg},
  title		= {On structured graph grammars (Parts {I}, {II})},
  journal	= {Technical report},
  number	= {3/88},
  year		= {1988},
  institution	= {Universit{\"a}t Bremen},
  added		= {1996-08-02-14-49-29}
}

@Article{	  Kreowski-Rozenberg:90,
  author	= {Hans-J{\"o}rg Kreowski and Grzegorz Rozenberg},
  title		= {On Structured Graph Grammars, Parts {I} and {II}},
  journal	= {Information Sciences},
  volume	= {52},
  pages		= {185--210 and 221--246},
  year		= {1990},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Kreowski-Wilharm:86,
  author	= {Hans-J{\"o}rg Kreowski and Anne Wilharm},
  title		= {Net processes correspond to derivation processes in graph
		  grammars},
  journal	= {Theoretical Computer Science},
  volume	= {44},
  pages		= {275--305},
  year		= {1986},
  added		= {1999-05-11-18-41-21}
}

@InProceedings{	  Kreowski-Wilharm:87,
  author	= {Hans-J{\"o}rg Kreowski and Anne Wilharm},
  title		= {{Is Parallelism Already Concurrency? Part 2: Non
		  Sequential Processes in Graph Grammars}},
  editor	= {Hartmut Ehrig and Manfred Nagl and Grzegorz Rozenberg and
		  Azriel Rosenfeld},
  booktitle	= {Proc.\ 3rd Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {291},
  pages		= {361--377},
  year		= {1987},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@PhDThesis{	  Kreowski:77,
  author	= {Hans-J{\"o}rg Kreowski},
  title		= {Manipulationen von Graphmanipulationen},
  year		= {1977},
  school	= {Technische Universit{\"a}t Berlin},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Kreowski:77b,
  author	= {Hans-J{\"o}rg Kreowski},
  title		= {Transformations of Derivation Sequences in Graph
		  Grammars},
  editor	= {M. Karpi\'nski},
  booktitle	= {Fundamentals of Computation Theory},
  series	= {Lecture Notes in Computer Science},
  volume	= {56},
  pages		= {275--286},
  year		= {1977},
  added		= {1996-03-13-10-09-20}
}

@TechReport{	  Kreowski:78,
  author	= {Hans-J{\"o}rg Kreowski},
  title		= {{Anwendungen der Algebraischen Theorie von
		  Graph-Grammatiken auf Konsistenz und Synchronisation in
		  Datenbanksystemen}},
  number	= {78-15},
  year		= {1978},
  institution	= {Berlin},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Kreowski:79,
  author	= {Hans-J{\"o}rg Kreowski},
  title		= {{A Pumping Lemma for Context-Free Graph Languages}},
  editor	= {Volker Claus and Hartmut Ehrig and Grzegorz Rozenberg},
  booktitle	= {Proc.\ 1st Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science and Biology},
  series	= {Lecture Notes in Computer Science},
  volume	= {73},
  pages		= {270--283},
  year		= {1979},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Kreowski:81,
  author	= {H.-J. Kreowski},
  title		= {A comparison between {P}etri-nets and graph grammars},
  editor	= {H. Noltemeier},
  booktitle	= {Graphtheoric Concepts in Computer Science, Proceedings of
		  the International Workshop WG'80},
  series	= {Lecture Notes in Computer Science},
  number	= {100},
  pages		= {306--317},
  year		= {1981},
  publisher	= {Springer-Verlag},
  added		= {1996-04-16-07-34-15}
}

@InProceedings{	  Kreowski:83,
  author	= {Hans-J{\"o}rg Kreowski},
  title		= {Graph Grammar Derivation Processes},
  booktitle	= {Graph-Theoretic Concepts in Computer Science},
  pages		= {136--150},
  year		= {1983},
  publisher	= {Trauner Verlag},
  address	= {Linz},
  added		= {1996-03-13-10-09-20}
}

@InCollection{	  Kreowski:86,
  author	= {Hans-J{\"o}rg Kreowski},
  title		= {Rule Trees Represent Derivations in Edge Replacement
		  Systems},
  editor	= {G. Rozenberg and A. Salomaa},
  booktitle	= {The Book of L},
  pages		= {217--232},
  year		= {1986},
  publisher	= {Springer-Verlag},
  address	= {Berlin},
  added		= {1996-03-13-10-09-20}
}

@TechReport{	  Kreowski:87,
  author	= {Hans-J{\"o}rg Kreowski},
  title		= {Rule Trees Can Help to Escape Hard Graph Problems},
  year		= {1987},
  institution	= {Bremen},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Kreowski:87b,
  author	= {Hans-J{\"o}rg Kreowski},
  title		= {{Is Parallelism Already Concurrency? Part 1: Derivations
		  in Graph Grammars}},
  editor	= {Hartmut Ehrig and Manfred Nagl and Grzegorz Rozenberg and
		  Azriel Rosenfeld},
  booktitle	= {Proc.\ 3rd Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {291},
  pages		= {343--360},
  year		= {1987},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InCollection{	  Kreowski:92,
  author	= {Hans-J{\"o}rg Kreowski},
  title		= {Parallel Hyperedge Replacement},
  editor	= {G. Rozenberg and A. Salomaa},
  booktitle	= {Lindenmayer Systems},
  pages		= {271--282},
  year		= {1992},
  publisher	= {Springer-Verlag},
  address	= {Berlin},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Kreowski:93,
  author	= {Hans-J{\"o}rg Kreowski},
  title		= {Five Facets of Hyperedge Replacement Beyond
		  Context-Freeness},
  editor	= {Z. \'Esik},
  booktitle	= {Proc. Fundamentals of Computation Theory 93},
  series	= {Lecture Notes in Computer Science},
  volume	= {710},
  pages		= {69--86},
  year		= {1993},
  added		= {1996-03-13-10-09-20}
}

@InCollection{	  Kreowski:93b,
  author	= {Hans-J{\"o}rg Kreowski},
  title		= {Translations into the Graph Grammar Machine},
  editor	= {Ronan Sleep and Rinus Plasmeijer and Marko {van Eekelen}},
  booktitle	= {Term Graph Rewriting: Theory and Practice},
  chapter	= {13},
  pages		= {171--183},
  year		= {1993},
  publisher	= {John Wiley},
  address	= {New York},
  added		= {1996-03-13-10-09-20}
}

@InCollection{	  Kreowski:94,
  author	= {Hans-J{\"o}rg Kreowski},
  title		= {An Axiomatic Approach to Canonical Derivations},
  editor	= {B. Pehrson and I. Simon},
  booktitle	= {13th World Computer Congress 94, Volume 1},
  pages		= {348--353},
  year		= {1994},
  publisher	= {Elsevier Science (North-Holland)},
  added		= {1996-03-13-10-09-20}
}

@TechReport{	  Kreowski:95,
  author	= {Hans-J{\"o}rg Kreowski},
  title		= {A Case Study in {GRACE}: Shortest Paths},
  year		= {1995},
  institution	= {Bremen},
  type		= {Technical Report},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Kreowski:95b,
  author	= {Hans-J{\"o}rg Kreowski},
  title		= {Graph Grammars for Software Specification and Programming:
		  An Eulogy in Praise of {GRACE}},
  editor	= {G. Valiente and F. Rossell\'o},
  booktitle	= {Proc. Colloquium on Graph Transformation and its
		  Application in Computer Science},
  journal	= {Technical Report, Palma de Mallorca},
  pages		= {63--70},
  year		= {1995},
  added		= {1996-03-13-10-09-20}
}

@MastersThesis{	  Kreten:95,
  author	= {Kreten, H.},
  title		= {{Graphenalgorithmen in PROGRES}},
  year		= {1995},
  address	= {RWTH Aachen},
  type		= {Diplomarbeit},
  school	= {Lehrstuhl f{\"u}r Informatik III},
  added		= {1996-11-28-18-33-07},
  subtitle	= {{Auswahl, Spezifikation und effiziente Realisierung}}
}

@Article{	  Kruskal:60,
  author	= {J. B. Kruskal},
  title		= {Well-Quasi-Ordering, the Tree-Theorem, and {V}azsonyi's
		  Conjecture},
  journal	= {Proceedings of the American Mathematical Society},
  year		= {1960},
  added		= {1996-03-28-11-35-01}
}

@InProceedings{	  Kuske:93,
  author	= {Sabine Kuske},
  title		= {Maximum Path Length Pumping Lemma for Edge Replacement
		  Languages},
  editor	= {Z. \'Esik},
  booktitle	= {Proc.\ Fundamentals of Computation Theory},
  series	= {Lecture Notes in Computer Science},
  volume	= {710},
  pages		= {342--351},
  year		= {1993},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Kuske:95,
  author	= {Sabine Kuske},
  title		= {Semantic Aspects of the Graph and Rule Centered Language
		  {GRACE}},
  editor	= {F. Rossell{\'o} Llompart and G. Valiente Feruglio},
  booktitle	= {Proc. Colloquium on Graph Transformation and its
		  Application in Computer Science},
  series	= {Technical Report, Palma de Mallorca},
  pages		= {63--70},
  year		= {1995},
  added		= {1996-03-13-10-09-20}
}

@InCollection{	  Kuske:95b,
  author	= {Sabine Kuske},
  title		= {Implementing $\beta$-reduction by hypergraph rewriting},
  editor	= {A. Corradini and U. Montanari},
  booktitle	= {Proc.\ Joint {COMPUGRAPH/SEMAGRAPH} Workshop on Graph
		  Rewriting and Computation ({SEGRAGRA '95})},
  journal	= {Electronic Notes in Theoretical Computer Science},
  volume	= {2},
  pages		= {159--166},
  year		= {1995},
  publisher	= {Elsevier Science},
  added		= {1998-02-11-16-07-04}
}

@InProceedings{	  LBaresi-AOrso-MPezze:97,
  author	= {L.~Baresi and A.~Orso and M.~Pezze},
  title		= {Introducing formal Specification Methods in Industrial
		  Practice},
  booktitle	= {ICSE'97 Proceedings of the 19th International Conference
		  on Software Engineering},
  pages		= {56--66},
  year		= {1997},
  publisher	= {IEEE Computer Society Press},
  added		= {2000-05-23-18-31-23}
}

@Article{	  LCsirmaz:80,
  author	= {L.~Csirmaz},
  title		= {Iterated Grammars},
  journal	= {Acta Cybernetica},
  volume	= {5},
  pages		= {43--48},
  year		= {1980},
  added		= {2000-05-23-18-31-23}
}

@Article{	  Lange-Welzl:87,
  author	= {Klaus-J{\"o}rn Lange and Emo Welzl},
  title		= {String Grammars with Disconnecting or a Basic Root of the
		  Difficulty in Graph Grammar Parsing},
  journal	= {Discrete Applied Mathematics},
  volume	= {16},
  pages		= {17--30},
  year		= {1987},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Lautemann:88,
  author	= {Clemens Lautemann},
  title		= {Decomposition Trees: Structured Graph Representation and
		  Efficient Algorithms},
  editor	= {M. Dauchet and M. Nivat},
  booktitle	= {CAAP'88},
  series	= {Lecture Notes in Computer Science},
  volume	= {299},
  pages		= {28--39},
  year		= {1988},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Lautemann:88b,
  author	= {Clemens Lautemann},
  title		= {Efficient Algorithms on Context-Free Graph Languages},
  editor	= {T. Lepist{\"o} and A. Salomaa},
  booktitle	= {Automata, Languages and Programming},
  series	= {Lecture Notes in Computer Science},
  volume	= {317},
  pages		= {362--378},
  year		= {1988},
  added		= {1996-03-13-10-09-20}
}

@TechReport{	  Lautemann:89,
  author	= {Clemens Lautemann},
  title		= {The Complexity of Graph Languages Generated by Hyperedge
		  Replacement},
  number	= {4/89},
  year		= {1989},
  institution	= {Univ. Bremen},
  type		= {Report},
  added		= {1996-03-28-11-35-01}
}

@Article{	  Lautemann:90,
  author	= {Clemens Lautemann},
  title		= {The Complexity of Graph Languages Generated by Hyperedge
		  Replacement},
  journal	= {Acta Informatica},
  volume	= {27},
  pages		= {399--421},
  year		= {1990},
  added		= {1996-03-13-10-09-20}
}

@TechReport{	  Lautemann:90b,
  author	= {Clemens Lautemann},
  title		= {Tree automata, Tree Decomposition and hyperedge
		  replacement},
  number	= {2/90},
  year		= {1990},
  institution	= {Univ. Mainz},
  type		= {{Informatik-Bericht}},
  added		= {1996-03-28-11-35-01}
}

@InProceedings{	  Lautemann:91,
  author	= {Clemens Lautemann},
  title		= {{Tree Automata, Tree Decomposition and Hyperedge
		  Replacement}},
  editor	= {Hartmut Ehrig and Hans-J{\"o}rg Kreowski and Grzegorz
		  Rozenberg},
  booktitle	= {Proc.\ 4th. Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {532},
  pages		= {520--537},
  year		= {1991},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InCollection{	  Leeuwen:90,
  author	= {Jan van Leeuwen},
  title		= {Graph Algorithms},
  editor	= {J. van Leeuwen},
  booktitle	= {Handbook of Theoretical Computer Science},
  volume	= {A},
  pages		= {193--242},
  year		= {1990},
  publisher	= {Elsevier},
  address	= {Amsterdam},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Lengauer-Wagner:87,
  author	= {Thomas Lengauer and K. W. Wagner},
  title		= {The Correlation Between the Complexities of the
		  Non-Hierarchical and Hierarchical Version of Graph
		  Problems},
  editor	= {F. Brandenburg and G. {Vidal-Naquet} and M. Wirsing},
  booktitle	= {STACS 87},
  series	= {Lecture Notes in Computer Science},
  volume	= {247},
  pages		= {100--113},
  year		= {1987},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Lengauer-Wanke:88,
  author	= {Thomas Lengauer and Egon Wanke},
  title		= {Efficient Analysis of Graph Properties on Context-Free
		  Graph Languages},
  editor	= {T. Lepist{\"o} and A. Salomaa},
  booktitle	= {Proc.\ Intl.\ Coll.\ Automata, Languages and Programming
		  ({ICALP'88})},
  series	= {Lecture Notes in Computer Science},
  volume	= {317},
  pages		= {379--393},
  year		= {1988},
  publisher	= {Springer},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Lengauer-Wanke:88b,
  author	= {Thomas Lengauer and Egon Wanke},
  title		= {Efficient Solution of Connectivity Problems on
		  Hierarchically Defined Graphs},
  journal	= {SIAM Journal on Computing},
  volume	= {17},
  pages		= {1063--1080},
  year		= {1988},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Lengauer-Wanke:88c,
  author	= {T. Lengauer and E. Wanke},
  title		= {Decision Problems on Cellular Graph Grammars},
  series	= {Lecture Notes in Computer Science},
  volume	= {317},
  pages		= {379--393},
  year		= {1988},
  publisher	= {Springer},
  added		= {1996-03-28-11-35-01}
}

@Article{	  Lengauer-Wanke:93,
  author	= {Thomas Lengauer and Egon Wanke},
  title		= {Efficient Decision Procedures for Graph Properties on
		  Context-Free Graph Languages},
  journal	= {Journal of the Association for Computing Machinery},
  volume	= {40},
  pages		= {368--393},
  year		= {1993},
  added		= {1996-03-13-10-09-20}
}

@InCollection{	  Lengauer:85,
  author	= {Thomas Lengauer},
  title		= {Efficient Solution of Biconnectivity Problems on
		  Hierarchically Defined Graphs},
  editor	= {H. Noltemeier},
  booktitle	= {Graph-Theoretic Concepts in Computer Science},
  pages		= {201--215},
  year		= {1985},
  publisher	= {Trauner Verlag},
  address	= {Linz},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Lengauer:86,
  author	= {Thomas Lengauer},
  title		= {Hierarchical Planarity Testing Algorithms},
  editor	= {L. Kott},
  booktitle	= {Automata, Languages and Programming},
  series	= {Lecture Notes in Computer Science},
  volume	= {226},
  pages		= {215--225},
  year		= {1986},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Lengauer:87,
  author	= {Thomas Lengauer},
  title		= {Efficient Algorithms for Finding Minimum Spanning Forests
		  of Hierarchically Defined Graphs},
  journal	= {Journal of Algorithms},
  volume	= {8},
  pages		= {260--284},
  year		= {1987},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Lewerentz-Nagl-Westfechtel:88,
  author	= {C. Lewerentz and M. Nagl and B. Westfechtel},
  title		= {On integration mechanisms within a graphbased software
		  development environment},
  booktitle	= {Proc {WG87} workshop on graphtheoretic concepts in comp.\
		  sci.},
  series	= {Lecture Notes in Computer Science},
  volume	= {314},
  pages		= {219--229},
  year		= {1988},
  publisher	= {Springer-Verlag},
  added		= {1996-08-02-14-49-29}
}

@InProceedings{	  Lewerentz-Nagl:84,
  author	= {C. Lewerentz and M. Nagl},
  title		= {A formal specification language for software systems
		  defined by graph grammars},
  editor	= {Pape},
  booktitle	= {Proc.of {WG84} workshop on graphtheoretic concepts in
		  comp.\ sci.},
  pages		= {224--241},
  year		= {1984},
  publisher	= {Trauner-Verlag},
  address	= {Linz},
  added		= {1996-08-02-14-49-29}
}

@Book{		  Lewerentz:88,
  author	= {Claus Lewerentz},
  title		= {Interaktives Entwerfen gro\ss er Programmsysteme: Konzepte
		  und Werkzeuge},
  series	= {Informatik-Fachberichte},
  volume	= {194},
  year		= {1988},
  publisher	= {Springer-Verlag},
  address	= {Berlin},
  note		= {Doctoral dissertation},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Lichtblau:85,
  author	= {Ulrike Lichtblau},
  title		= {Decompilation of Control Structures by Means of Graph
		  Transformations},
  editor	= {H. Ehrig and C. Floyd and M. Nivat and J. Thatcher},
  booktitle	= {Mathematical Foundations of Software Development},
  series	= {Lecture Notes in Computer Science},
  volume	= {185},
  pages		= {284--297},
  year		= {1985},
  added		= {1996-03-13-10-09-20}
}

@PhDThesis{	  Lichtblau:90,
  author	= {Ulrike Lichtblau},
  title		= {Flu\ss graphgrammatiken},
  year		= {1990},
  school	= {Oldenburg},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Lichtblau:91,
  author	= {Ulrike Lichtblau},
  title		= {{Recognizing Rooted Context-Free Flowgraph Languages in
		  Polynomial Time}},
  editor	= {Hartmut Ehrig and Hans-J{\"o}rg Kreowski and Grzegorz
		  Rozenberg},
  booktitle	= {Proc.\ 4th. Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {532},
  pages		= {538--548},
  year		= {1991},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@Article{	  Lindenmayer-CulikII:79,
  author	= {Aristid Lindenmayer and Karel {Culik II}},
  title		= {Growing Cellular Systems: Generation of Graphs by Parallel
		  Rewriting},
  journal	= {Int. J. General Systems},
  volume	= {5},
  pages		= {45--55},
  year		= {1979},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Lindenmayer-Rozenberg:79,
  author	= {Aristid Lindenmayer and G. Rozenberg},
  title		= {Parallel Generation of Maps: Developmental Systems of Cell
		  Layers},
  editor	= {V. Claus and H. Ehrig and G. Rozenberg},
  booktitle	= {Graph-Grammars and Their Application to Computer Science
		  and Biology},
  series	= {Lecture Notes in Computer Science},
  volume	= {73},
  pages		= {301--316},
  year		= {1979},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Lindenmayer-Rozenberg:79b,
  author	= {Aristid Lindenmayer and Grzegorz Rozenberg},
  title		= {{Parallel Generation of Maps: Developmental Systems for
		  Cell Layers}},
  editor	= {Volker Claus and Hartmut Ehrig and Grzegorz Rozenberg},
  booktitle	= {Proc.\ 1st Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science and Biology},
  series	= {Lecture Notes in Computer Science},
  volume	= {73},
  pages		= {301--316},
  year		= {1979},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Lindenmayer:87,
  author	= {Aristid Lindenmayer},
  title		= {{An Introduction to Parallel Map Generating Systems}},
  editor	= {Hartmut Ehrig and Manfred Nagl and Grzegorz Rozenberg and
		  Azriel Rosenfeld},
  booktitle	= {Proc.\ 3rd Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {291},
  pages		= {27--40},
  year		= {1987},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Lingas-Syslo:88,
  author	= {A. Lingas and Maciej M. Syslo},
  title		= {A Polynomial-Time Algorithm for Subgraph Isomorphism of
		  Two-Connected Series-Parallel Graphs},
  editor	= {T. Lepist{\"o} and A. Salomaa},
  booktitle	= {Automata, Languages and Programming},
  series	= {Lecture Notes in Computer Science},
  volume	= {317},
  pages		= {394--409},
  year		= {1988},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Litovsky-Metivier-Sopena:95,
  author	= {Igor Litovsky and Yves M\'etivier and Eric Sopena},
  title		= {Different Local Controls for Graph Relabeling Systems},
  journal	= {Mathematical Systems Theory},
  volume	= {28},
  pages		= {41--65},
  year		= {1995},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Litovsky-Metivier-Zielonka:93,
  author	= {Igor Litovsky and Yves M\'etivier and W. Zielonka},
  title		= {The Power and Limitations of Local Computations on Graphs
		  and Networks},
  editor	= {E. W. Mayr},
  booktitle	= {Graph-Theoretic Concepts in Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {657},
  pages		= {333--345},
  year		= {1993},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Litovsky-Metivier:91,
  author	= {Igor Litovsky and Yves M\'etivier},
  title		= {Computing with Graph Relabelling Systems with Priorities},
  editor	= {H. Ehrig and H.-J. Kreowski and G. Rozenberg},
  booktitle	= {Graph Grammars and Their Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {532},
  pages		= {549--563},
  year		= {1991},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Litovsky-Metivier:91b,
  author	= {Igor Litovsky and Yves M{\'e}tivier},
  title		= {{Computing with Graph Relabelling Systems with Priorities
		  (Extended Abstract)}},
  editor	= {Hartmut Ehrig and Hans-J{\"o}rg Kreowski and Grzegorz
		  Rozenberg},
  booktitle	= {Proc.\ 4th. Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {532},
  pages		= {549--563},
  year		= {1991},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Litovsky-Metivier:92,
  author	= {Igor Litovsky and Yves M\'etivier},
  title		= {Computing Trees with Graph Rewriting Systems with
		  Priorities},
  editor	= {M. Nivat and A. Podelski},
  booktitle	= {Tree Automata and Languages},
  pages		= {115--139},
  year		= {1992},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Litovsky-Metivier:93,
  author	= {Igor Litovsky and Yves M\'etivier},
  title		= {Computing with Graph Rewriting Systems with Priorities},
  journal	= {Theoretical Computer Science},
  volume	= {115},
  pages		= {191--224},
  year		= {1993},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Loewe-Beyer:93,
  author	= {Michael L{\"o}we and Martin Beyer},
  title		= {{AGG} --- An Implementation of Algebraic Graph Rewriting},
  booktitle	= {Rewriting Techniques and Applications},
  series	= {Lecture Notes in Computer Science},
  volume	= {690},
  pages		= {451--456},
  year		= {1993},
  publisher	= {Springer-Verlag},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Loewe-Ehrig:91,
  author	= {Michael L{\"o}we and Hartmut Ehrig},
  title		= {Algebraic Approach to Graph Transformation based on Single
		  Pushout Derivations},
  editor	= {R. H. M{\"o}hring},
  booktitle	= {Graph-Theoretic Concepts in Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {484},
  pages		= {338--353},
  year		= {1991},
  added		= {1996-03-13-10-09-20}
}

@InCollection{	  Loewe-Korff-Wagner:93,
  author	= {Michael L{\"o}we and Martin Korff and Annika Wagner},
  title		= {An Algebraic Framework for the Transformation of
		  Attributed Graphs},
  editor	= {Ronan Sleep and Rinus Plasmeijer and Marko {van Eekelen}},
  booktitle	= {Term Graph Rewriting: Theory and Practice},
  pages		= {185--199},
  year		= {1993},
  publisher	= {John Wiley},
  address	= {New York},
  added		= {1996-03-13-10-09-20}
}

@PhDThesis{	  Loewe:90,
  author	= {Michael L{\"o}we},
  title		= {Extended Algebraic Graph Transformation},
  year		= {1990},
  school	= {Berlin},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Loewe:90b,
  author	= {Michael L{\"o}we},
  title		= {Implementing Algebraic Specifications by Graph
		  Transformation Systems},
  journal	= {Journal of Information Processing and Cybernetics EIK},
  volume	= {26},
  number	= {11/12},
  pages		= {615--641},
  year		= {1990},
  added		= {1996-03-13-10-09-20}
}

@TechReport{	  Loewe:90c,
  author	= {M. L{\"o}we},
  title		= {Algebraic approach to graph transformation, based on
		  single pushout derivations},
  number	= {90/5},
  year		= {1990},
  institution	= {Technische Universit{\"a}t Berlin},
  note		= {Doctoral dissertation},
  added		= {1996-08-02-14-49-29}
}

@Article{	  Loewe:93,
  author	= {Michael L{\"o}we},
  title		= {Algebraic Approach to Single-Pushout Graph
		  Transformation},
  journal	= {Theoretical Computer Science},
  volume	= {109},
  pages		= {181--224},
  year		= {1993},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Ludwigs:80,
  author	= {H. L. Ludwigs},
  title		= {Properties of Ordered Graph Grammars},
  editor	= {H. Noltemeier},
  booktitle	= {Graphtheoric Concepts in Computer Science, Proceedings of
		  the International Workshop WG'80},
  series	= {Lecture Notes in Computer Science},
  number	= {100},
  pages		= {70--79},
  year		= {1980},
  publisher	= {Springer-Verlag},
  added		= {1996-04-16-07-34-15}
}

@InProceedings{	  Lueck-Lueck:79,
  author	= {Jacqueline L{\"u}ck and Hermann B. L{\"u}ck},
  title		= {{Two-Dimensional, Differential, Intercalary Plant Tissue
		  Growth and Parallel Graph Generating and Graph Recurrence
		  Systems}},
  editor	= {Volker Claus and Hartmut Ehrig and Grzegorz Rozenberg},
  booktitle	= {Proc.\ 1st Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science and Biology},
  series	= {Lecture Notes in Computer Science},
  volume	= {73},
  pages		= {284--300},
  year		= {1979},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Lueck-Lueck:83,
  author	= {Jacqueline L{\"u}ck and Hermann B. L{\"u}ck},
  title		= {{Generation of 3-Dimensional Plant Bodies By Double Wall
		  Map and Stereomap Systems}},
  editor	= {Hartmut Ehrig and Manfred Nagl and Grzegorz Rozenberg},
  booktitle	= {Proc.\ 2nd Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {153},
  pages		= {219--231},
  year		= {1983},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Lueck-Lueck:87,
  author	= {Jacqueline L{\"u}ck and Hermann B. L{\"u}ck},
  title		= {From {OL} and {IL} Map Systems to Intermediate and
		  Deterministic Growth in Plant Morphogenesis},
  editor	= {H. Ehrig and M. Nagl and G. Rozenberg and A. Rosenfeld},
  booktitle	= {Graph Grammars and Their Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {291},
  pages		= {393--410},
  year		= {1987},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Lueck-Lueck:87b,
  author	= {Jacqueline L{\"u}ck and Hermann B. L{\"u}ck},
  title		= {{From OL and IL Map Systems to Indeterminate and
		  Determinate Growth in Plant Morphogenesis}},
  editor	= {Hartmut Ehrig and Manfred Nagl and Grzegorz Rozenberg and
		  Azriel Rosenfeld},
  booktitle	= {Proc.\ 3rd Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {291},
  pages		= {393--410},
  year		= {1987},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Lueck-Lueck:91,
  author	= {Jacqueline L{\"u}ck and Hermann B. L{\"u}ck},
  title		= {{Double-Wall Cellwork Systems for Plant Meristems}},
  editor	= {Hartmut Ehrig and Hans-J{\"o}rg Kreowski and Grzegorz
		  Rozenberg},
  booktitle	= {Proc.\ 4th. Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {532},
  pages		= {564--581},
  year		= {1991},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Lueck-Lueck:96,
  author	= {Jacqueline L{\"u}ck and Hermann B. L{\"u}ck},
  title		= {{Cellworks with Cell Rewriting and Cell Packing for Plant
		  Morphogenesis}},
  editor	= {Janice E. Cuny and Hartmut Ehrig and Gregor Engels and
		  Grzegorz Rozenberg},
  booktitle	= {Proc.\ 5th Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {1073},
  pages		= {536--549},
  year		= {1996},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@TechReport{	  Ly:97,
  author	= {O. Ly},
  title		= {On the logical hierarchy of graphs},
  pages		= {1--15},
  year		= {1997},
  institution	= {Colloqium New trends in Semantics, (satellite workshop of
		  ICALP97)},
  added		= {1998-01-22-10-35-50}
}

@PhDThesis{	  MAndries:96,
  author	= {M.~Andries},
  title		= {Graph Rewrite Systems and Visual Database Languages},
  year		= {1996},
  school	= {Rijks-Universiteit te Leiden},
  added		= {2000-05-23-18-31-23}
}

@MastersThesis{	  MBeyer:91,
  author	= {M.~Beyer},
  title		= {GAG: ein graphischer Editor f{\"u}r algebraische
		  Graphgrammatik-Systeme},
  year		= {1991},
  school	= {Fachbereich Informatik, Technische Universit{\"a}t Berlin},
  added		= {2000-05-23-18-31-23}
}

@Book{		  MBroy-SJaehnichen:95,
  title		= {KORSO: Methods, Languages and Tools for the Construction
		  of Correct Software},
  editor	= {M.~Broy and S.~J{\"a}hnichen},
  series	= {Lecture Notes in Computer Science},
  volume	= {1009},
  year		= {1995},
  publisher	= {Springer-Verlag},
  address	= {Berlin},
  added		= {2000-05-23-18-31-23}
}

@MastersThesis{	  MKurt:00,
  author	= {M.~Kurt},
  title		= {Entwurf und Implementierung einer Kontroll-Komponente
		  f{\"u}r attributierte Graph-Ersetzung},
  year		= {2000},
  school	= {Fachbereich Informatik, Technische Universit{\"a}t Berlin},
  added		= {2000-05-23-18-31-23}
}

@PhDThesis{	  MLefering:95,
  author	= {M.~Lefering},
  title		= {Integrationswerkzeuge in einer
		  Software-Entwicklungs-Umgebung},
  year		= {1995},
  school	= {Fakult{\"a}t f{\"u}r Mathematik, Naturwissenschaften und
		  Informatik, Rheinisch-Westf{\"a}lische Technische
		  Hochschule Aachen},
  note		= {Published by Shaker-Verlag Aachen},
  added		= {2000-05-23-18-31-23}
}

@TechReport{	  MLoewe-JMueller:93,
  author	= {M.~L{\"o}we and J.~M{\"u}ller},
  title		= {Algebraische Graph-Ersetzung: Mathematische Modellierung
		  und Konfluenz},
  series	= {Forschungsberichte des Fachbereichs Informatik},
  number	= {93-37},
  year		= {1993},
  institution	= {Technische Universit{\"a}t Berlin},
  added		= {2000-05-23-18-31-23},
  issn		= {1436-9915}
}

@Article{	  MLoewe:93,
  author	= {M.~L{\"o}we},
  title		= {Algebraic Approach to Single-Pushout
		  Graph-Transformation},
  journal	= {Theoretical Computer Science},
  volume	= {109},
  pages		= {181--224},
  year		= {1993},
  added		= {2000-05-23-18-31-23}
}

@InProceedings{	  MMinas-LShklar:96,
  author	= {M.~Minas and L.~Shklar},
  title		= {A high level Visual Language for generating Web
		  Structures},
  booktitle	= {VL'96 Proceedings of the IEEE Symposium on Visual
		  Languages},
  pages		= {284+},
  year		= {1996},
  publisher	= {IEEE Computer Society Press},
  added		= {2000-05-23-18-31-23}
}

@TechReport{	  MMuench-ASchuerr-AWinter:98,
  author	= {M.~M{\"u}nch and A.~Sch{\"u}rr and A.~Winter},
  title		= {Integrity Constraints in the Multi Paradigm Language
		  PROGRES},
  number	= {TR-DSSE 98-2},
  year		= {1998},
  institution	= {University of Southampton},
  added		= {2000-05-23-18-31-23}
}

@MastersThesis{	  MMuench:96,
  author	= {M.~M{\"u}nch},
  title		= {Constraints, Pre- und Post-Conditions in PROGRES},
  year		= {1996},
  school	= {Lehrstuhl f{\"u}r Informatik III,
		  Rheinisch-Westf{\"a}lische Technische Hochschule Aachen},
  added		= {2000-05-23-18-31-23}
}

@Book{		  MNagl-ASchuerr-MMuench:00,
  title		= {AGTIVE'99 International Workshop on Applications of Graph
		  Transformation with Industrial Relevance},
  editor	= {M.~Nagl and A.~Sch{\"u}rr and M.~M{\"u}nch},
  series	= {Lecture Notes in Computer Science},
  volume	= {1779},
  year		= {2000},
  publisher	= {Springer-Verlag},
  address	= {Berlin},
  note		= {Fresh! Contains about 30 Original Papers},
  added		= {2000-05-23-18-31-23}
}

@Book{		  MNagl-BWestfechtel:98,
  title		= {Integration von Entwicklungssystemen in
		  Ingenieuranwendungen: Substantielle Verbesserung der
		  Entwicklungsprozesse},
  editor	= {M.~Nagl and B.~Westfechtel},
  year		= {1998},
  publisher	= {Springer-Verlag},
  address	= {Heidelberg},
  added		= {2000-05-23-18-31-23}
}

@Book{		  MNagl-JPerl:83,
  title		= {WG'83: International Workshop on Graph Theoretic Concepts
		  in Computer Science},
  editor	= {M.~Nagl and J.~Perl},
  year		= {1983},
  publisher	= {Trauner-Verlag},
  address	= {Linz},
  note		= {Continuation of the WG {\em Fachtagung}},
  added		= {2000-05-23-18-31-23}
}

@TechReport{	  MNagl:74,
  author	= {M.~Nagl},
  title		= {Formale Sprachen von markierten Graphen},
  series	= {Arbeitsberichte des IMMD},
  volume	= {7},
  number	= {4},
  year		= {1974},
  institution	= {Friedrich-Alexander-Universit{\"a}t Erlangen-N{\"u}rnberg},
  added		= {2000-05-23-18-31-23}
}

@TechReport{	  MNagl:87,
  author	= {M.~Nagl},
  title		= {Set Theoretic Approaches to Graph Grammars},
  series	= {Aachener Informatikberichte},
  number	= {87-8},
  year		= {1987},
  institution	= {Fachgruppe Informatik, RWTH Aachen},
  added		= {2000-05-23-18-31-23},
  issn		= {0935-3232}
}

@Book{		  MNagl:89,
  title		= {WG'89: 15th International Workshop on Graph Theoretic
		  Concepts in Computer Science},
  editor	= {M.~Nagl},
  series	= {Lecture Notes in Computer Science},
  volume	= {411},
  year		= {1989},
  publisher	= {Springer-Verlag},
  address	= {Berlin},
  note		= {Continuation of the WG {\em Fachtagung}},
  added		= {2000-05-23-18-31-23}
}

@Book{		  MNagl:95,
  title		= {WG'95: 21st International Workshop on Graph Theoretic
		  Concepts in Computer Science},
  editor	= {M.~Nagl},
  series	= {Lecture Notes in Computer Science},
  volume	= {1017},
  year		= {1995},
  publisher	= {Springer-Verlag},
  address	= {Berlin},
  note		= {Continuation of the WG {\em Fachtagung}},
  added		= {2000-05-23-18-31-23}
}

@Article{	  MacLane:37,
  author	= {Saunders MacLane},
  title		= {A Structural Characterization of Planar Combinatorial
		  Graphs},
  journal	= {Duke Mathematical Journal},
  volume	= {3},
  pages		= {460--472},
  year		= {1937},
  added		= {1996-03-13-10-09-20}
}

@Book{		  MacLane:71,
  author	= {Saunders MacLane},
  title		= {Categories for Working Mathematicians},
  year		= {1971},
  publisher	= {Springer-Verlag},
  address	= {New York},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Maggiolo-Schettini-Peron:96,
  author	= {Andrea Maggiolo-Schettini and Adriano Peron},
  title		= {{A Graph Rewriting Framework for Statecharts Semantics}},
  editor	= {Janice E. Cuny and Hartmut Ehrig and Gregor Engels and
		  Grzegorz Rozenberg},
  booktitle	= {Proc.\ 5th Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {1073},
  pages		= {107--121},
  year		= {1996},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Maggiolo-Schettini-Winkowski:79,
  author	= {Andrea Maggiolo-Schettini and J{\'o}zef Winkowski},
  title		= {{Processes in Structures}},
  editor	= {Volker Claus and Hartmut Ehrig and Grzegorz Rozenberg},
  booktitle	= {Proc.\ 1st Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science and Biology},
  series	= {Lecture Notes in Computer Science},
  volume	= {73},
  pages		= {317--330},
  year		= {1979},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Maggiolo-Schettini-Winkowski:91,
  author	= {Andrea Maggiolo-Schettini and J{\'o}zef Winkowski},
  title		= {{Programmed Derivations of Relational Structures}},
  editor	= {Hartmut Ehrig and Hans-J{\"o}rg Kreowski and Grzegorz
		  Rozenberg},
  booktitle	= {Proc.\ 4th. Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {532},
  pages		= {582--598},
  year		= {1991},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@Article{	  Maggiolo-Schettini-Winkowski:96,
  author	= {{Maggiolo-Schettini}, Andrea and Winkowski, J\'ozef},
  title		= {A Kernel Language for Programmed Rewriting of
		  (Hyper)Graphs},
  journal	= {Acta Informatica},
  volume	= {33},
  pages		= {523--546},
  year		= {1996},
  added		= {2000-05-23-15-04-04}
}

@Article{	  Maggiolo-Schettini-Winkowski:97,
  author	= {{Maggiolo-Schettini}, Andrea and Winkowski, J\'ozef},
  title		= {A Partial-order Representation of Processes of
		  Transforming Graphs},
  journal	= {Fundamenta Informaticae},
  volume	= {31},
  pages		= {337--355},
  year		= {1997},
  added		= {2000-05-23-15-04-04}
}

@InCollection{	  Mahr-Wilharm:82,
  author	= {Bernd Mahr and Anne Wilharm},
  title		= {Graph Grammars as a Tool for Description in Computer
		  Processed Control: {A} Case Study},
  editor	= {H. J. Schneider and H. G{\"o}ttler},
  booktitle	= {Graph-Theoretic Concepts in Computer Science},
  pages		= {165--176},
  year		= {1982},
  publisher	= {Hanser Verlag},
  address	= {M{\"u}nchen/Wien},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Main-Rozenberg:87,
  author	= {M. G. Main and Grzegorz Rozenberg},
  title		= {Handle {NLC} Grammars and {R}.{E}. Languages},
  journal	= {Journal of Computer and System Sciences},
  volume	= {35},
  pages		= {195--205},
  year		= {1987},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Main-Rozenberg:87b,
  author	= {Michael G. Main and Grzegorz Rozenberg},
  title		= {{Fundamentals of Edge-Label Controlled Graph Grammars}},
  editor	= {Hartmut Ehrig and Manfred Nagl and Grzegorz Rozenberg and
		  Azriel Rosenfeld},
  booktitle	= {Proc.\ 3rd Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {291},
  pages		= {411--426},
  year		= {1987},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@Article{	  Main-Rozenberg:90,
  author	= {M. G. Main and Grzegorz Rozenberg},
  title		= {Edge-Label Controlled Graph Grammars},
  journal	= {Journal of Computer and System Sciences},
  volume	= {40},
  pages		= {188--228},
  year		= {1990},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Maurer-Rozenberg-Welzl:83,
  author	= {Hermann A. Maurer and Grzegorz Rozenberg and Emo Welzl},
  title		= {{Chain Code Picture Languages}},
  editor	= {Hartmut Ehrig and Manfred Nagl and Grzegorz Rozenberg},
  booktitle	= {Proc.\ 2nd Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {153},
  pages		= {232--244},
  year		= {1983},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InCollection{	  Mayoh:76,
  author	= {B. Mayoh},
  title		= {Another Model for the Development of Multidimensional
		  Organisms},
  editor	= {A. Lindenmayer and G. Rozenberg},
  booktitle	= {Automata, Languages, Development},
  pages		= {469--486},
  year		= {1976},
  publisher	= {North Holland},
  address	= {Amsterdam},
  added		= {1996-03-13-10-09-20}
}

@PhDThesis{	  Meier:82,
  author	= {A. Meier},
  title		= {Semantisches Datenmodell f{\"u}r fl{\"a}chenbezogene Daten},
  year		= {1982},
  school	= {Z{\"u}rich},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Meier:83,
  author	= {A. Meier},
  title		= {{A Graph-Relational Approach to Geographic Databases}},
  editor	= {Hartmut Ehrig and Manfred Nagl and Grzegorz Rozenberg},
  booktitle	= {Proc.\ 2nd Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {153},
  pages		= {245--254},
  year		= {1983},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@Article{	  Meier:85,
  author	= {A. Meier},
  title		= {A Graph Grammar Approach to Geographic Databases},
  journal	= {Information Systems},
  volume	= {10},
  pages		= {9--19},
  year		= {1985},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Messerschmidt:83,
  author	= {Jan Messerschmidt},
  title		= {{Graph Transductions in the Field of Automatic Translation
		  of Natural Languages}},
  editor	= {Hartmut Ehrig and Manfred Nagl and Grzegorz Rozenberg},
  booktitle	= {Proc.\ 2nd Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {153},
  pages		= {255--266},
  year		= {1983},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Metivier-Muscholl:97,
  author	= {Y. M\'etivier and A. Muscholl},
  title		= {About the local detection of termination of local
		  computations},
  booktitle	= {The 4th International colloquium on structural information
		  and communication complexity},
  year		= {1997},
  publisher	= {Carleton University Press},
  added		= {1998-01-22-10-35-50}
}

@Article{	  Metivier-Sopena:97,
  author	= {Y. M\'etivier and E. Sopena},
  title		= {Graph relabelling systems : a general overview},
  journal	= {Computers and artificial intelligence},
  volume	= {16},
  pages		= {167--185},
  year		= {1997},
  added		= {1998-01-22-10-35-50}
}

@Article{	  Mezei-Wright:67,
  author	= {J. Mezei and J. B. Wright},
  title		= {Algebraic Automata and Context-Free Sets},
  journal	= {Information and Control},
  volume	= {11},
  pages		= {3--29},
  year		= {1967},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Mizoguchi-Kawahara:95,
  author	= {Yoshihiro Mizoguchi and Yasuo Kawahara},
  title		= {Relational Graph rewrtings},
  journal	= {Theoretical Computer Science},
  volume	= {11},
  pages		= {311--328},
  year		= {1995},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Moessle-Vogler:97,
  author	= {M\"o\ss{}le, Andrea and Vogler, Heiko},
  title		= {Benefits of Hypergraphs for Program Transformation},
  editor	= {M. Jarke, K. Pasedach, K. Pohl},
  booktitle	= {Proc.\ Informatik '97},
  series	= {Reihe Informatik aktuell},
  pages		= {572--581},
  year		= {1997},
  publisher	= {Springer Verlag},
  added		= {1998-04-14-09-05-12}
}

@InProceedings{	  Moldovan-Parisi-Presicce:87,
  author	= {D. Moldovan and Francesco Parisi-Presicce},
  title		= {{Parallelism Analysis in Rule-Based Systems Using Graph
		  Grammars}},
  editor	= {Hartmut Ehrig and Manfred Nagl and Grzegorz Rozenberg and
		  Azriel Rosenfeld},
  booktitle	= {Proc.\ 3rd Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {291},
  pages		= {427--439},
  year		= {1987},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Montanari-Rossi:87,
  author	= {Ugo Montanari and Francesca Rossi},
  title		= {{An Efficient Algorithm for the Solution of Hierarchical
		  Networks of Constraints}},
  editor	= {Hartmut Ehrig and Manfred Nagl and Grzegorz Rozenberg and
		  Azriel Rosenfeld},
  booktitle	= {Proc.\ 3rd Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {291},
  pages		= {440--457},
  year		= {1987},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Montanari-Rossi:91,
  author	= {Ugo Montanari and Francesca Rossi},
  title		= {A True Concurrency Semantics for Concurrent Constraint
		  Programming},
  booktitle	= {ILPS91},
  year		= {1991},
  publisher	= {MIT Press},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Montanari-Rossi:93,
  author	= {Ugo Montanari and Francesca Rossi},
  title		= {Graph Rewriting for a Partial Ordering Semantics of
		  Concurrent Constraint Programming},
  journal	= {Theoretical Computer Science},
  volume	= {109},
  pages		= {225--256},
  year		= {1993},
  added		= {1996-03-13-10-09-20}
}

@Unpublished{	  Montanari-Rossi:97,
  author	= {Montanari, U. and Rossi, F.},
  title		= {Graph Rewriting, Constraint Solving and Tiles for
		  Coordinating Distributed Systems},
  year		= {1997},
  note		= {Submitted for publication},
  added		= {1998-01-22-10-35-50}
}

@Article{	  Montanari:70,
  author	= {Ugo Montanari},
  title		= {Separable Graphs, Planar Graphs and Web Grammars},
  journal	= {Information and Control},
  volume	= {16},
  pages		= {243--267},
  year		= {1970},
  added		= {1996-03-13-10-09-20}
}

@TechReport{	  Mosbah-Saheb:96,
  author	= {M. Mosbah and N. Saheb},
  title		= {Non Uniform Random Spanning Trees on Weighted Graphs},
  number	= {1143--96},
  year		= {1996},
  institution	= {LaBRI, University of Bordeaux},
  note		= {Submitted to Theoret. Comput. Science},
  added		= {1998-01-22-10-35-50}
}

@InProceedings{	  Mosbah-Saheb:97,
  author	= {M. Mosbah and N. Saheb},
  title		= {A Syntactic Approach to Random Walks on Graphs},
  booktitle	= {23rd International Workshop, WG'97},
  year		= {1997},
  month		= {June},
  publisher	= {Lect. Notes. Comput. Sci., to appear},
  address	= {Berlin, Germany},
  note		= {Technical Report 1163--97, University of Bordeaux},
  added		= {1998-01-22-10-35-50}
}

@InProceedings{	  Mosbah-Saheb:97b,
  author	= {M. Mosbah and N. Saheb},
  title		= {Formal Rational Fractions and Random Walks on Cycle
		  Graphs},
  booktitle	= {Formal Power Series and Algebraic Combinatorics, 9th
		  Conference},
  year		= {1997},
  month		= {July},
  address	= {Vienna, Austria},
  note		= {Technical Report 1147--96, University of Bordeaux},
  added		= {1998-01-22-10-35-50}
}

@InProceedings{	  Mosbah:92,
  author	= {M. Mosbah},
  title		= {Probabilistic Graph Grammars},
  editor	= {E. W. Mayr},
  booktitle	= {Graph-Theoric Concepts in Computer Science, 18th
		  International Workshop, Wiesbaden-Naurod, Germany},
  series	= {Lecture Notes in Computer Science},
  number	= {657},
  pages		= {236--247},
  year		= {1992},
  publisher	= {Springer-Verlag},
  added		= {1996-04-16-07-34-15}
}

@TechReport{	  Mueller:96,
  author	= {M{\"u}ller, J.},
  title		= {On Termination of Single-Pushout Graph Rewriting},
  number	= {96-38},
  year		= {1996},
  institution	= {TU Berlin},
  type		= {Technical Report},
  added		= {1998-01-22-10-35-50}
}

@PhDThesis{	  Munz:76,
  author	= {R. Munz},
  title		= {Das Web-Modell},
  year		= {1976},
  school	= {Stuttgart},
  added		= {1996-03-13-10-09-20}
}

@Article{	  NBreier:87,
  author	= {N.~Breier},
  title		= {Parallel-Rekursive Graph-Wort-Funktionen},
  journal	= {Elektronische Informations-Verarbeitung und Kybernetik},
  volume	= {23},
  number	= {4/5},
  pages		= {171--179},
  year		= {1987},
  added		= {2000-05-23-18-31-23}
}

@Article{	  NChomsky:59,
  author	= {N.~Chomsky},
  title		= {On certain Formal Properties of Grammars},
  journal	= {Information and Control},
  volume	= {2},
  number	= {2},
  pages		= {137--167},
  year		= {1959},
  publisher	= {Academic Press},
  added		= {2000-05-23-18-31-23}
}

@InProceedings{	  NKiesel-ASchuerr-BWestfechtel:93,
  author	= {N.~Kiesel and A.~Sch{\"u}rr and B.~Westfechtel},
  title		= {Design and Evolution of GRAS, a Graph Oriented Database
		  System for Engineering Applications},
  booktitle	= {CASE'93 Proceedings of the 6th International Workshop on
		  Computer Aided Software Engineering},
  pages		= {272--286},
  year		= {1993},
  publisher	= {IEEE Computer Society Press},
  added		= {2000-05-23-18-31-23},
  editors	= {S.~Jarzabek and H.~Lee and T.~Reid}
}

@InProceedings{	  NKiesel-ASchuerr-BWestfechtel:95,
  author	= {N.~Kiesel and A.~Sch{\"u}rr and B.~Westfechtel},
  title		= {Functionality and Applications of a Graph Oriented
		  Software Engineering Database System},
  booktitle	= {Proceedings of the Workshop on the Intersection between
		  Databases and Software Engineering},
  pages		= {64--68},
  year		= {1995},
  publisher	= {IEEE Computer Society Press},
  added		= {2000-05-23-18-31-23},
  location	= {Sorrento}
}

@Article{	  NKiesel-ASchuerr-BWestfechtel:95b,
  author	= {N.~Kiesel and A.~Sch{\"u}rr and B.~Westfechtel},
  title		= {GRAS, a Graph Oriented (Software) Engineering Database
		  System},
  journal	= {Information Systems},
  volume	= {20},
  number	= {1},
  pages		= {21--52},
  year		= {1995},
  publisher	= {Pergamon Press},
  address	= {Oxford},
  added		= {2000-05-23-18-31-23}
}

@InProceedings{	  Nagl-Engels-Gall.ea:83,
  author	= {Manfred Nagl and Gregor Engels and Rupert Gall and Wilhelm
		  Sch{\"a}fer},
  title		= {{Software Specification by Graph Grammars}},
  editor	= {Hartmut Ehrig and Manfred Nagl and Grzegorz Rozenberg},
  booktitle	= {Proc.\ 2nd Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {153},
  pages		= {267--287},
  year		= {1983},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@Proceedings{	  Nagl-Perl:83,
  title		= {Proc.\ {WG83} intl.\ workshop on graphtheoretic concepts
		  in c.sc.},
  editor	= {M. Nagl and J. Perl},
  year		= {1983},
  publisher	= {Trauner-Verlag},
  address	= {Linz},
  added		= {1996-08-02-14-49-29}
}

@InProceedings{	  Nagl-Schuerr:91,
  author	= {Manfred Nagl and Andy Sch{\"u}rr},
  title		= {{A Specification Environment for Graph Grammars}},
  editor	= {Hartmut Ehrig and Hans-J{\"o}rg Kreowski and Grzegorz
		  Rozenberg},
  booktitle	= {Proc.\ 4th. Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {532},
  pages		= {599--609},
  year		= {1991},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Nagl-Schuerr:96,
  author	= {Manfred Nagl and Andy Sch{\"u}rr},
  title		= {{Software Integration Problems and Coupling of Graph
		  Grammar Specifications}},
  editor	= {Janice E. Cuny and Hartmut Ehrig and Gregor Engels and
		  Grzegorz Rozenberg},
  booktitle	= {Proc.\ 5th Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {1073},
  pages		= {155--169},
  year		= {1996},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@TechReport{	  Nagl:73,
  author	= {Manfred Nagl},
  title		= {{Beziehungen zwischen verschiedenen Klassen von
		  Diagramm-Sprachen}},
  number	= {6, 3, 72-93},
  year		= {1973},
  institution	= {Institut f{\"u}r Mathematische Maschinen und
		  Datenverarbeitung},
  address	= {Erlangen},
  type		= {Arbeitsbericht},
  added		= {1996-03-13-10-09-20}
}

@TechReport{	  Nagl:73b,
  author	= {Manfred Nagl},
  title		= {{Eine Pr\"azisierung des Pfaltz/Rosenfeldschen
		  Produktionsbegriffs bei mehrdimensionalen Grammatiken}},
  number	= {6a, 3, 56-71},
  year		= {1973},
  institution	= {Institut f{\"u}r Mathematische Maschinen und
		  Datenverarbeitung},
  address	= {Erlangen},
  type		= {Arbeitsbericht},
  added		= {1996-03-13-10-09-20}
}

@PhDThesis{	  Nagl:74,
  author	= {Manfred Nagl},
  title		= {{Formale Sprachen von markierten Graphen}},
  year		= {1974},
  school	= {Erlangen},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Nagl:76,
  author	= {Manfred Nagl},
  title		= {Formal Languages of Labelled Graphs},
  journal	= {Computing},
  volume	= {16},
  pages		= {113--137},
  year		= {1976},
  added		= {1996-03-13-10-09-20}
}

@Book{		  Nagl:79,
  author	= {Manfred Nagl},
  title		= {Graph-Grammatiken: Theorie, Anwendungen,
		  Implementierungen},
  year		= {1979},
  publisher	= {Vieweg},
  address	= {Braunschweig},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Nagl:79b,
  author	= {Manfred Nagl},
  title		= {{A Tutorial and Bibliographical Survey on Graph
		  Grammars}},
  editor	= {Volker Claus and Hartmut Ehrig and Grzegorz Rozenberg},
  booktitle	= {Proc.\ 1st Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science and Biology},
  series	= {Lecture Notes in Computer Science},
  volume	= {73},
  pages		= {70--126},
  year		= {1979},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Nagl:83,
  author	= {Manfred Nagl},
  title		= {{Bibliography on Graph Rewriting Systems
		  (Graph-Grammars)}},
  editor	= {Hartmut Ehrig and Manfred Nagl and Grzegorz Rozenberg},
  booktitle	= {Proc.\ 2nd Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {153},
  pages		= {415--448},
  year		= {1983},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Nagl:87,
  author	= {Manfred Nagl},
  title		= {{A Software Development Environment Based on Graph
		  Technology}},
  editor	= {Hartmut Ehrig and Manfred Nagl and Grzegorz Rozenberg and
		  Azriel Rosenfeld},
  booktitle	= {Proc.\ 3rd Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {291},
  pages		= {458--478},
  year		= {1987},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Nagl:87b,
  author	= {Manfred Nagl},
  title		= {{Set Theoretic Approaches to Graph Grammars}},
  editor	= {Hartmut Ehrig and Manfred Nagl and Grzegorz Rozenberg and
		  Azriel Rosenfeld},
  booktitle	= {Proc.\ 3rd Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {291},
  pages		= {41--54},
  year		= {1987},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@Proceedings{	  Nagl:90,
  title		= {Proc.\ {WG89} 15th int.\ Workshop on graphtheoretic
		  concepts in comp.\ sci.},
  editor	= {M. Nagl},
  series	= {Lecture Notes in Computer Science},
  number	= {411},
  year		= {1990},
  publisher	= {Springer-Verlag},
  added		= {1996-08-02-14-49-29}
}

@Book{		  Nagl:90b,
  author	= {M. Nagl},
  title		= {{Softwaretechnik: Methodisches Programmieren im
		  Gro{\ss}en}},
  year		= {1990},
  publisher	= {Springer-Verlag},
  note		= {(in German)},
  added		= {1996-08-02-14-49-29}
}

@Book{		  Nagl:96,
  title		= {The IPSEN Project},
  editor	= {M. Nagl},
  series	= {Lecture Notes in Computer Science},
  year		= {1996},
  publisher	= {Springer-Verlag},
  note		= {to appear},
  added		= {1996-08-02-14-49-29}
}

@InProceedings{	  Nakamura-Lindenmayer-Aizawa:87,
  author	= {Akira Nakamura and Aristid Lindenmayer and Kunio Aizawa},
  title		= {{Map OL Systems with Markers}},
  editor	= {Hartmut Ehrig and Manfred Nagl and Grzegorz Rozenberg and
		  Azriel Rosenfeld},
  booktitle	= {Proc.\ 3rd Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {291},
  pages		= {479--495},
  year		= {1987},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Nyrup-Mayoh:79,
  author	= {Kristian Nyrup and Brian H. Mayoh},
  title		= {{Map Grammars: Cycles and the Algebraic Approach}},
  editor	= {Volker Claus and Hartmut Ehrig and Grzegorz Rozenberg},
  booktitle	= {Proc.\ 1st Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science and Biology},
  series	= {Lecture Notes in Computer Science},
  volume	= {73},
  pages		= {331--340},
  year		= {1979},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Ollongren:79,
  author	= {Alexander Ollongren},
  title		= {{On Multilevel-Graph Grammars}},
  editor	= {Volker Claus and Hartmut Ehrig and Grzegorz Rozenberg},
  booktitle	= {Proc.\ 1st Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science and Biology},
  series	= {Lecture Notes in Computer Science},
  volume	= {73},
  pages		= {341--349},
  year		= {1979},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@Article{	  PBonizzoni-GdellaVedova:99,
  author	= {P.~Bonizzoni and G.~della~Vedova},
  title		= {An Algorithm for the Modular Decomposition of
		  Hypergraphs},
  journal	= {Journal of Algorithms},
  volume	= {2},
  number	= {32},
  year		= {1999},
  month		= {Aug},
  added		= {2000-05-23-18-31-23}
}

@Article{	  PBurmeister-MMonserrat-FRossello.ea:99,
  author	= {P.~Burmeister and M.~Monserrat and F.~Rossello and
		  G.~Valiente},
  title		= {Algebraic Transformation of Unary Partial Algebras 2:
		  Single Pushout Approach},
  journal	= {Theoretical Computer Science},
  volume	= {216},
  number	= {1/2},
  year		= {1999},
  added		= {2000-05-23-18-31-23}
}

@InProceedings{	  PHeimann-GJoeris-C-AKrapp.ea:96,
  author	= {P.~Heimann and G.~J{\"o}ris and C.-A.~Krapp and
		  B.~Westfechtel},
  title		= {DYNAMITE: Dynamic Task Nets for Software Process
		  Management},
  booktitle	= {ICSE'96 Proceedings of the 18th International Conference
		  on Software Engineering},
  pages		= {331--341},
  year		= {1996},
  publisher	= {IEEE Computer Society Press},
  added		= {2000-05-23-18-31-23}
}

@Book{		  PPrusinkiewicz-ALindenmayer:90,
  author	= {P.~Prusinkiewicz and A.~Lindenmayer},
  title		= {The Algorithmic Beauty of Plants},
  year		= {1990},
  publisher	= {Springer-Verlag},
  address	= {New York},
  added		= {2000-05-23-18-31-23}
}

@Misc{		  PROGRES:00,
  author	= {PROGRES},
  year		= {2000},
  note		= {Download a Graph Transformation System for free},
  added		= {2000-05-23-18-31-23},
  url		= {http://www-i3.informatik.rwth-aachen.de/research/progres/}
		  
}

@Article{	  PStarke:83,
  author	= {P.~Starke},
  title		= {Graph Grammars for Petri Net Processes},
  journal	= {Elektronische Informations-Verarbeitung und Kybernetik},
  volume	= {19},
  number	= {4/5},
  pages		= {199--233},
  year		= {1983},
  added		= {2000-05-23-18-31-23}
}

@InProceedings{	  Padawitz:79,
  author	= {Peter Padawitz},
  title		= {{Graph Grammars and Operational Semantics}},
  editor	= {Volker Claus and Hartmut Ehrig and Grzegorz Rozenberg},
  booktitle	= {Proc.\ 1st Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science and Biology},
  series	= {Lecture Notes in Computer Science},
  volume	= {73},
  pages		= {350--366},
  year		= {1979},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@Article{	  Padawitz:82,
  author	= {Peter Padawitz},
  title		= {Graph Grammars and Operational Semantics},
  journal	= {Theoretical Computer Science},
  volume	= {19},
  pages		= {117--141},
  year		= {1982},
  added		= {1996-03-13-10-09-20}
}

@TechReport{	  Parikh:61,
  author	= {Rohit J. Parikh},
  title		= {Language Generating Devices},
  number	= {60},
  pages		= {199--212},
  year		= {1961},
  institution	= {Research Laboratory of Electronics, M.I.T.},
  type		= {Quarterly Progress Report},
  added		= {1996-03-28-11-35-01}
}

@Article{	  Parikh:66,
  author	= {Rohit J. Parikh},
  title		= {On Context-Free Languages},
  journal	= {Journal of the Association for Computing Machinery},
  volume	= {13},
  pages		= {570--581},
  year		= {1966},
  added		= {1996-03-28-11-35-01}
}

@InProceedings{	  Parisi-Presicce-Ehrig-Montanari:87,
  author	= {Francesco Parisi-Presicce and Hartmut Ehrig and Ugo
		  Montanari},
  title		= {{Graph Rewriting with Unification and Composition}},
  editor	= {Hartmut Ehrig and Manfred Nagl and Grzegorz Rozenberg and
		  Azriel Rosenfeld},
  booktitle	= {Proc.\ 3rd Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {291},
  pages		= {496--514},
  year		= {1987},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Parisi-Presicce-Piersanti:95,
  author	= {Francesco {Parisi-Presicce} and Gabriele Piersanti},
  title		= {Multilevel Graph Grammars},
  editor	= {W. {Mayr, Ernst} and Gunter Schmidt and Gottfried
		  Tinhofer},
  booktitle	= {Graph-Theoretic Concepts in Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {903},
  pages		= {51--64},
  year		= {1995},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Parisi-Presicce:89,
  author	= {Francesco {Parisi-Presicce}},
  title		= {Modular System Design Applying Graph Grammar Techniques},
  editor	= {G. Ausiello and M. {Dezani-Ciancaglini} and S. Ronchi
		  Della Rocca},
  booktitle	= {Automata, Languages and Programming},
  series	= {Lecture Notes in Computer Science},
  volume	= {372},
  pages		= {621--636},
  year		= {1989},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Parisi-Presicce:90,
  author	= {Francesco {Parisi-Presicce}},
  title		= {A Rule Based Approach to Modular System Design},
  booktitle	= {12th Int. Conf. Software Engineering},
  pages		= {202--211},
  year		= {1990},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Parisi-Presicce:92,
  author	= {F. Parisi-Presicce},
  title		= {Single vs. double pushout derivations of graphs},
  editor	= {E. W. Mayr},
  booktitle	= {Graph-theoric concepts in computer science : proceedings
		  18th international workshop, WG'92},
  series	= {LNCS},
  number	= {657},
  pages		= {248--262},
  year		= {1992},
  publisher	= {Springer Verlag},
  added		= {1996-04-16-07-34-15}
}

@InProceedings{	  Parisi-Presicce:96,
  author	= {Francesco Parisi-Presicce},
  title		= {{Transformations of Graph Grammars}},
  editor	= {Janice E. Cuny and Hartmut Ehrig and Gregor Engels and
		  Grzegorz Rozenberg},
  booktitle	= {Proc.\ 5th Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {1073},
  pages		= {428--442},
  year		= {1996},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@Book{		  Paulisch:93,
  author	= {Francis Newbery Paulisch},
  title		= {The Design of an Extendible Graph Editor},
  series	= {Lecture Notes in Computer Science},
  number	= {704},
  year		= {1993},
  publisher	= {Springer-Verlag},
  address	= {Berlin},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Pavlidis:72,
  author	= {Theodosios Pavlidis},
  title		= {Linear and Context-Free Graph Grammars},
  journal	= {Journal of the ACM},
  volume	= {19},
  number	= {1},
  pages		= {11--23},
  year		= {1972},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Pavlidis:72b,
  author	= {Theodosios Pavlidis},
  title		= {Representation of Figures by Labeled Graphs},
  journal	= {Pattern Recognition},
  volume	= {4},
  pages		= {5--17},
  year		= {1972},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Pavlidis:80,
  author	= {Theodosios Pavlidis},
  title		= {Structural Descriptions and Graph Grammars},
  editor	= {S. K. Chang and K. S. Fu},
  booktitle	= {Pictorial Inf. Syst.},
  series	= {Lecture Notes in Computer Science},
  volume	= {80},
  pages		= {86--103},
  year		= {1980},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Paz-Raz:79,
  author	= {Azaria Paz and Y. Raz},
  title		= {{Complexity of Pattern Generation by MAP-L Systems}},
  editor	= {Volker Claus and Hartmut Ehrig and Grzegorz Rozenberg},
  booktitle	= {Proc.\ 1st Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science and Biology},
  series	= {Lecture Notes in Computer Science},
  volume	= {73},
  pages		= {367--378},
  year		= {1979},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Paz:83,
  author	= {Azaria Paz},
  title		= {{Geometry versus Topology in Map Grammars}},
  editor	= {Hartmut Ehrig and Manfred Nagl and Grzegorz Rozenberg},
  booktitle	= {Proc.\ 2nd Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {153},
  pages		= {288--296},
  year		= {1983},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Paz:91,
  author	= {Azaria Paz},
  title		= {{The Theory of Graphoids: A Survey}},
  editor	= {Hartmut Ehrig and Hans-J{\"o}rg Kreowski and Grzegorz
		  Rozenberg},
  booktitle	= {Proc.\ 4th. Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {532},
  pages		= {610--621},
  year		= {1991},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@Article{	  PdellaVigna-CGhezzi:78,
  author	= {P.~della~Vigna and C.~Ghezzi},
  title		= {Context free Graph Grammars},
  journal	= {Information and Control},
  volume	= {37},
  number	= {2},
  pages		= {207--233},
  year		= {1978},
  publisher	= {Academic Press},
  added		= {2000-05-23-18-31-23}
}

@Article{	  Pelecq:97,
  author	= {L. Pelecq},
  title		= {Isomorphismes et automorphismes des graphes
		  contextfr-free, {\'e}quationnels et automatiques},
  journal	= {Th\`ese de doctorat,universit\'e Bordeaux 1},
  pages		= {1--127},
  year		= {1997},
  added		= {1998-01-22-10-35-50}
}

@Article{	  Petrov:78,
  author	= {S. V. Petrov},
  title		= {Graph Grammars and Automata (Survey)},
  journal	= {Automation and Remote Control},
  volume	= {39},
  pages		= {1034--1050},
  year		= {1978},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Pfaltz-Rosenfeld:69,
  author	= {John L. Pfaltz and Azriel Rosenfeld},
  title		= {Web Grammars},
  booktitle	= {Int. Joint Confenence on Artificial Intelligence},
  pages		= {609--619},
  year		= {1969},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Pfaltz:72,
  author	= {John L. Pfaltz},
  title		= {Web Grammars and Picture Description},
  journal	= {Computer Graphics and Image Processing},
  volume	= {1},
  pages		= {193--220},
  year		= {1972},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Pfaltz:79,
  author	= {John L. Pfaltz},
  title		= {{A Graph Grammar that describes the Set of Two-Dimensional
		  Surface Networks}},
  editor	= {Volker Claus and Hartmut Ehrig and Grzegorz Rozenberg},
  booktitle	= {Proc.\ 1st Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science and Biology},
  series	= {Lecture Notes in Computer Science},
  volume	= {73},
  pages		= {379--388},
  year		= {1979},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Pfaltz:83,
  author	= {J. L. Pfaltz},
  title		= {Transformation structures by convex homomorphisms},
  editor	= {H. Ehrig and M. Nagl and G. Rozenberg},
  booktitle	= {Graph Grammars and Their Application to Computer Science,
		  2nd International Workshop, Haus Ohrbeck, Germany},
  series	= {Lecture Notes in Computer Sciences},
  number	= {153},
  pages		= {297--313},
  year		= {1983},
  publisher	= {Spinger-Verlag},
  added		= {1996-04-16-07-34-15}
}

@InProceedings{	  Pfaltz:83b,
  author	= {John L. Pfaltz},
  title		= {{Transformation of Structures by Convex Homomorphisms}},
  editor	= {Hartmut Ehrig and Manfred Nagl and Grzegorz Rozenberg},
  booktitle	= {Proc.\ 2nd Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {153},
  pages		= {297--313},
  year		= {1983},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@MastersThesis{	  Pickartz:95,
  author	= {Pickartz, W.},
  title		= {{Generierungsmechanismen f{\"u}r graphische Editoren}},
  year		= {1995},
  address	= {RWTH Aachen},
  type		= {Diplomarbeit},
  school	= {Lehrstuhl f{\"u}r Informatik III},
  added		= {1996-11-28-18-33-07}
}

@Book{		  Plasmeijer-vanEekelen:93,
  title		= {Functional Programming and Parallel Graph Rewriting},
  editor	= {Rinus Plasmeijer and Marko {van Eekelen}},
  year		= {1993},
  publisher	= {Addison-Wesley},
  address	= {Wokingham, England},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Plump-Habel:96,
  ATTENTION	= {newer record added: Jul 30, 1996},
  author	= {Detlef Plump and Annegret Habel},
  title		= {Graph Unification and Matching},
  booktitle	= {Graph Grammars and Their Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  year		= {1996},
  note		= {To appear},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Plump-Habel:96b,
  author	= {Detlef Plump and Annegret Habel},
  title		= {{Graph Unification and Matching}},
  editor	= {Janice E. Cuny and Hartmut Ehrig and Gregor Engels and
		  Grzegorz Rozenberg},
  booktitle	= {Proc.\ 5th Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {1073},
  pages		= {75--88},
  year		= {1996},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Plump:91,
  author	= {Detlef Plump},
  title		= {Implementing Term Rewriting by Graph Reduction:
		  Termination of Combined Systems},
  editor	= {S. Kaplan and M. Okada},
  booktitle	= {Conditional and Typed Rewriting Systems},
  series	= {Lecture Notes in Computer Science},
  volume	= {516},
  pages		= {307--317},
  year		= {1991},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Plump:91b,
  author	= {Detlef Plump},
  title		= {{Graph-Reducible Term Rewriting Systems}},
  editor	= {Hartmut Ehrig and Hans-J{\"o}rg Kreowski and Grzegorz
		  Rozenberg},
  booktitle	= {Proc.\ 4th. Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {532},
  pages		= {622--636},
  year		= {1991},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Plump:93,
  author	= {Detlef Plump},
  title		= {Collapsed Tree Rewriting: Completeness, Confluence, and
		  Modularity},
  editor	= {M. Rusinowitch and J. L. R\'emy},
  booktitle	= {Proc.\ Conditional Term Rewriting Systems},
  series	= {Lecture Notes in Computer Science},
  volume	= {656},
  pages		= {97--112},
  year		= {1993},
  added		= {1996-03-13-10-09-20}
}

@PhDThesis{	  Plump:93b,
  author	= {Detlef Plump},
  title		= {Evaluation of Functional Expressions by Hypergraph
		  Rewriting},
  year		= {1993},
  school	= {Bremen},
  added		= {1996-03-13-10-09-20}
}

@InCollection{	  Plump:93c,
  author	= {Detlef Plump},
  title		= {Hypergraph Rewriting: Critical Pairs and Undecidability of
		  Confluence},
  editor	= {Ronan Sleep and Rinus Plasmeijer and Marko {van Eekelen}},
  booktitle	= {Term Graph Rewriting: Theory and Practice},
  chapter	= {15},
  year		= {1993},
  publisher	= {John Wiley},
  address	= {New York},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Plump:94,
  author	= {Detlef Plump},
  title		= {Critical Pairs in Term Graph Rewriting},
  editor	= {Igor Pr\'ivara and Branislav Rovan and Peter
		  Ru\v{z}i\v{c}ka},
  booktitle	= {Mathematical Foundations of Computer Science 1994},
  series	= {Lecture Notes in Computer Science},
  volume	= {841},
  pages		= {556--566},
  year		= {1994},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Plump:95,
  author	= {Detlef Plump},
  title		= {On Termination of Graph Rewriting},
  editor	= {Manfred Nagl},
  booktitle	= {Graph-Theoretic Concepts in Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {1017},
  pages		= {88--100},
  year		= {1995},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Plump:97,
  author	= {Plump, Detlef},
  title		= {Simplification Orders for Term Graph Rewriting},
  editor	= {Pr\'{\i}vara, I. and Ru\v{z}i\v{c}ka, P.},
  booktitle	= {Proc.\ Mathematical Foundations of Computer Science 1997},
  series	= {Lecture Notes in Computer Science},
  volume	= {1295},
  pages		= {458--467},
  year		= {1997},
  added		= {1997-09-01-16-46-57}
}

@TechReport{	  Plump:97b,
  author	= {Detlef Plump},
  title		= {Termination of Graph Rewriting is Undecidable},
  number	= {7/97},
  year		= {1997},
  institution	= {Universit\"at Bremen, Fachbereich Mathematik und
		  Informatik},
  type		= {Informatik-Bericht},
  added		= {1998-01-05-18-25-23}
}

@MastersThesis{	  Poensgen:95,
  author	= {Poensgen, A.},
  title		= {{Generierung eigenst{\"a}ndiger Anwendungen aus PROGRES}},
  year		= {1995},
  address	= {RWTH Aachen},
  type		= {Diplomarbeit},
  school	= {Lehrstuhl f{\"u}r Informatik III},
  added		= {1996-11-28-18-33-07}
}

@Article{	  Pratt:71,
  author	= {Terrence W. Pratt},
  title		= {Pair Grammars, Graph Languages and String-to-Graph
		  Translations},
  journal	= {Journal of Computer and System Sciences},
  volume	= {5},
  pages		= {560--595},
  year		= {1971},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Pratt:79,
  author	= {Terrence W. Pratt},
  title		= {{Definition of Programming Language Semantics using
		  Grammars for Hierarchical Graphs}},
  editor	= {Volker Claus and Hartmut Ehrig and Grzegorz Rozenberg},
  booktitle	= {Proc.\ 1st Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science and Biology},
  series	= {Lecture Notes in Computer Science},
  volume	= {73},
  pages		= {389--400},
  year		= {1979},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Pratt:83,
  author	= {Terrence W. Pratt},
  title		= {{Formal Specification of Software using H-Graph
		  Semantics}},
  editor	= {Hartmut Ehrig and Manfred Nagl and Grzegorz Rozenberg},
  booktitle	= {Proc.\ 2nd Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {153},
  pages		= {314--332},
  year		= {1983},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Prusinkiewicz-Kari:96,
  author	= {Przemyslaw Prusinkiewicz and Lila Kari},
  title		= {{Subapical Bracketed L-Systems}},
  editor	= {Janice E. Cuny and Hartmut Ehrig and Gregor Engels and
		  Grzegorz Rozenberg},
  booktitle	= {Proc.\ 5th Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {1073},
  pages		= {550--564},
  year		= {1996},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Prusinkiewicz:87,
  author	= {Przemyslaw Prusinkiewicz},
  title		= {{Applications of L-Systems to Computer Imagery}},
  editor	= {Hartmut Ehrig and Manfred Nagl and Grzegorz Rozenberg and
		  Azriel Rosenfeld},
  booktitle	= {Proc.\ 3rd Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {291},
  pages		= {534--548},
  year		= {1987},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@Misc{		  RArlt-MRoeder:89,
  author	= {R.~Arlt and M.~R{\"o}der},
  title		= {Grundlegende Datenstrukturen und Algorithmen zur
		  Implementierung von algebraischen Graphgrammatiken},
  year		= {1989},
  school	= {Fachbereich Informatik, Technische Universit{\"a}t Berlin},
  note		= {Studienarbeit},
  added		= {2000-05-23-18-31-23}
}

@TechReport{	  RBloem-JEngelfriet:97,
  author	= {R.~Bloem and J.~Engelfriet},
  title		= {Characterization of properties and relations defined in
		  monadic second order logic on the nodes of trees},
  number	= {97--03},
  year		= {1997},
  month		= aug,
  institution	= {Leiden University},
  address	= {},
  type		= {Tech.Report},
  added		= {1998-01-22-10-35-50}
}

@InProceedings{	  RBloem-JEngelfriet:97b,
  author	= {R.~Bloem and J.~Engelfriet},
  title		= {Monadic second order logic and node relations on graphs
		  and trees},
  editor	= {J.~Mycielski and G.~Rozenberg and A.~Salomaa},
  booktitle	= {Structures in Logic and Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {1261},
  pages		= {144--161},
  year		= {1997},
  publisher	= {Springer-Verlag},
  added		= {1998-01-22-10-35-50}
}

@Article{	  RCori-AMachi:82,
  author	= {R.~Cori and A.~Machi},
  title		= {Construction of Maps with Prescribed Automorphism Group},
  journal	= {Theoretical Computer Science},
  volume	= {21},
  pages		= {91--98},
  year		= {1982},
  publisher	= {Elsevier/North Holland},
  added		= {2000-05-23-18-31-23}
}

@Article{	  RGuha-RYeh:73,
  author	= {R.~Guha and R.~Yeh},
  title		= {Perdiodic Representation of Equal Matrix Grammars},
  journal	= {Information and Control},
  volume	= {23},
  number	= {5},
  pages		= {435--446},
  year		= {1973},
  publisher	= {Academic Press},
  added		= {2000-05-23-18-31-23}
}

@Book{		  RMoehring:90,
  title		= {WG'90: 16th International Workshop on Graph Theoretic
		  Concepts in Computer Science},
  editor	= {R.~M{\"o}hring},
  series	= {Lecture Notes in Computer Science},
  volume	= {484},
  year		= {1990},
  publisher	= {Springer-Verlag},
  address	= {Berlin},
  note		= {Continuation of the WG {\em Fachtagung}},
  added		= {2000-05-23-18-31-23}
}

@Book{		  RMoehring:97,
  title		= {WG'97: 23rd International Workshop on Graph Theoretic
		  Concepts in Computer Science},
  editor	= {R.~M{\"o}hring},
  series	= {Lecture Notes in Computer Science},
  volume	= {1335},
  year		= {1997},
  publisher	= {Springer-Verlag},
  address	= {Berlin},
  note		= {Continuation of the WG {\em Fachtagung}},
  added		= {2000-05-23-18-31-23}
}

@Article{	  RSiromoney-KSubramanian:81,
  author	= {R.~Siromoney and K.~Subramanian},
  title		= {Selective Substitution Array Grammars},
  journal	= {Information Science},
  volume	= {25},
  number	= {1},
  pages		= {73--83},
  year		= {1981},
  publisher	= {Elsevier},
  added		= {2000-05-23-18-31-23}
}

@Article{	  RSiromoney:69,
  author	= {R.~Siromoney},
  title		= {On Equal Matrix Languages},
  journal	= {Information and Control},
  volume	= {14},
  number	= {2},
  pages		= {135--151},
  year		= {1969},
  publisher	= {Academic Press},
  added		= {2000-05-23-18-31-23}
}

@InProceedings{	  Rabin:64,
  author	= {M. O. Rabin},
  title		= {A Simple Method of Undecidability Proofs and Some
		  Applications},
  booktitle	= {Log. Meth. Phil. Sci. Proc.},
  pages		= {58--68},
  year		= {1964},
  address	= {Jerusalem},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Rabin:69,
  author	= {M. O. Rabin},
  title		= {Decidability of Second-Order Theories and Automata on
		  Infitite Trees},
  journal	= {Trans. of Amer. Math. Soc.},
  volume	= {141},
  pages		= {1--35},
  year		= {1969},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Rajlich:75,
  author	= {V. Rajlich},
  title		= {Dynamics of Discrete Systems and Pattern Reproduction},
  journal	= {Journal of Computer and System Sciences},
  volume	= {11},
  pages		= {186--202},
  year		= {1975},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Rajlich:79,
  author	= {V{\'a}clav Rajlich},
  title		= {{Determinism in Relational Systems}},
  editor	= {Volker Claus and Hartmut Ehrig and Grzegorz Rozenberg},
  booktitle	= {Proc.\ 1st Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science and Biology},
  series	= {Lecture Notes in Computer Science},
  volume	= {73},
  pages		= {401--408},
  year		= {1979},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Rao:95,
  author	= {M. R. K. Krishna Rao},
  title		= {Graph Reducibility of Term Rewriting Systems},
  booktitle	= {Mathematical Foundations of Computer Science},
  series	= {Lecture Notes in Computer Science},
  year		= {1995},
  note		= {To appear},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Raoult-Voisin:94,
  author	= {Jean-Claude Raoult and Fr\'ed\'eric Voisin},
  title		= {Set-Theoretic Graph Rewriting},
  editor	= {Hans J{\"u}rgen Schneider and Hartmut Ehrig},
  booktitle	= {Graph Transformations in Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {776},
  pages		= {312--325},
  year		= {1994},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Raoult:84,
  author	= {Jean-Claude Raoult},
  title		= {On Graph Rewritings},
  journal	= {Theoretical Computer Science},
  volume	= {32},
  pages		= {1--24},
  year		= {1984},
  added		= {1996-03-13-10-09-20}
}

@TechReport{	  Rekers-Schuerr:95,
  author	= {J. Rekers and A. Sch{\"u}rr},
  title		= {A parsing algorithm for context sensitive graph grammars},
  number	= {95-05},
  year		= {1995},
  institution	= {Rijksuniversiteit te Leiden},
  added		= {1996-08-02-14-49-29}
}

@Unpublished{	  Robertson-Seymour,
  author	= {N. Robertson and P. D. Seymour},
  title		= {Graph Minors {XVI}, Wagner's Conjecture},
  note		= {To appear},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Robertson-Seymour:83,
  author	= {N. Robertson and P. D. Seymour},
  title		= {Graph Minors {I}, Excluding a Forest},
  journal	= {Journ. Combinatorial Theory Ser. B},
  volume	= {35},
  pages		= {39--61},
  year		= {1983},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Robertson-Seymour:86,
  author	= {N. Robertson and P. D. Seymour},
  title		= {Graph Minors {II}, Algorithmic Aspects of Tree Width},
  journal	= {Journal of Algorithms},
  volume	= {7},
  pages		= {309--322},
  year		= {1986},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Robertson-Seymour:86b,
  author	= {N. Robertson and P. D. Seymour},
  title		= {Graph Minors {V}, Excluding a Planar Graph},
  journal	= {Journ. Combinatorial Theory Ser. B},
  volume	= {41},
  pages		= {92--114},
  year		= {1986},
  added		= {1996-03-13-10-09-20}
}

@Unpublished{	  Robertson-Seymour:90,
  author	= {N. Robertson and P. D. Seymour},
  title		= {Graph Minors {XIII}. {T}he Disjoint Paths Problem},
  year		= {1990},
  note		= {To appear},
  added		= {1996-03-28-11-35-01}
}

@Article{	  Rose:70,
  author	= {Donald J. Rose},
  title		= {Triangulated Graphs and the Elimination Process},
  journal	= {Journal of Mathematical Analysis and Applications},
  volume	= {33},
  pages		= {597--609},
  year		= {1970},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Rose:74,
  author	= {Donald J. Rose},
  title		= {On Simple Characterizations of $k$-Trees},
  journal	= {Discrete Mathematics},
  volume	= {7},
  pages		= {317--322},
  year		= {1974},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Rosen:73,
  author	= {Barry K. Rosen},
  title		= {Tree-Manipulating Systems and {Church-Rosser} Theorems},
  journal	= {Journal of the ACM},
  volume	= {20},
  pages		= {160--187},
  year		= {1973},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Rosen:75,
  author	= {Barry K. Rosen},
  title		= {A {Church-Rosser} Theorem for Graph Grammars},
  journal	= {Sigact News},
  volume	= {7},
  number	= {3},
  pages		= {26--31},
  year		= {1975},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Rosen:75b,
  author	= {Barry K. Rosen},
  title		= {Deriving Graphs from Graphs by Applying a Production},
  journal	= {Acta Informatica},
  volume	= {4},
  pages		= {337--357},
  year		= {1975},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Rosendahl-Mankwald:79,
  author	= {Manfred Rosendahl and Karl Peter Mankwald},
  title		= {{Analysis of Programs by Reduction of their Structure}},
  editor	= {Volker Claus and Hartmut Ehrig and Grzegorz Rozenberg},
  booktitle	= {Proc.\ 1st Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science and Biology},
  series	= {Lecture Notes in Computer Science},
  volume	= {73},
  pages		= {409--417},
  year		= {1979},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@Article{	  Rosenfeld-Milgram:72,
  author	= {Azriel Rosenfeld and D. Milgram},
  title		= {Web Automata and Web Grammars},
  journal	= {Machine Intelligence},
  volume	= {7},
  pages		= {307--324},
  year		= {1972},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Rosenfeld-Wu:83,
  author	= {Azriel Rosenfeld and Angela Wu},
  title		= {{Cellular Computers for Parallel Region-Level Image
		  Processing}},
  editor	= {Hartmut Ehrig and Manfred Nagl and Grzegorz Rozenberg},
  booktitle	= {Proc.\ 2nd Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {153},
  pages		= {333--348},
  year		= {1983},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@Article{	  Rosenfeld:71,
  author	= {Azriel Rosenfeld},
  title		= {Isotonic Grammars, Parallel Grammars, and Picture
		  Grammars},
  journal	= {Machine Intelligence},
  volume	= {6},
  pages		= {281--294},
  year		= {1971},
  added		= {1996-03-13-10-09-20}
}

@InCollection{	  Rosenfeld:76,
  author	= {Azriel Rosenfeld},
  title		= {Array and Web Languages: An Overwiew},
  editor	= {A. Lindenmayer and G. Rozenberg},
  booktitle	= {Automata, Languages, Development},
  pages		= {517--529},
  year		= {1976},
  publisher	= {North Holland},
  address	= {Amsterdam},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Rosenfeld:87,
  author	= {Azriel Rosenfeld},
  title		= {{Array Grammars}},
  editor	= {Hartmut Ehrig and Manfred Nagl and Grzegorz Rozenberg and
		  Azriel Rosenfeld},
  booktitle	= {Proc.\ 3rd Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {291},
  pages		= {67--70},
  year		= {1987},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Rosenfeld:91,
  author	= {Azriel Rosenfeld},
  title		= {{A Note on Graph Decimation}},
  editor	= {Hartmut Ehrig and Hans-J{\"o}rg Kreowski and Grzegorz
		  Rozenberg},
  booktitle	= {Proc.\ 4th. Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {532},
  pages		= {637--640},
  year		= {1991},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@Proceedings{	  Rozenberg-Salomaa:86,
  title		= {The Book of {L}},
  editor	= {Grzegorz Rozenberg and Arto Salomaa},
  year		= {1986},
  publisher	= {Springer-Verlag},
  address	= {Berlin},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Rozenberg-Welzl:86,
  author	= {Grzegorz Rozenberg and Emo Welzl},
  title		= {Boundary {NLC} Graph Grammars---Basic Definitions, Normal
		  Forms, and Complexity},
  journal	= {Information and Control},
  volume	= {69},
  pages		= {136--167},
  year		= {1986},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Rozenberg-Welzl:86b,
  author	= {Grzegorz Rozenberg and Emo Welzl},
  title		= {Graph Theoretic Closure Properties of the Family of
		  Boundary {NLC} Graph Languages},
  journal	= {Acta Informatica},
  volume	= {23},
  pages		= {289--309},
  year		= {1986},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Rozenberg-Welzl:87,
  author	= {Grzegorz Rozenberg and Emo Welzl},
  title		= {Combinatorial Properties of Boundary {NLC} Graph
		  Languages},
  journal	= {Discrete Applied Mathematics},
  volume	= {16},
  pages		= {59--73},
  year		= {1987},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Rozenberg:87,
  author	= {Grzegorz Rozenberg},
  title		= {{An Introduction to the NLC Way of Rewriting Graphs}},
  editor	= {Hartmut Ehrig and Manfred Nagl and Grzegorz Rozenberg and
		  Azriel Rosenfeld},
  booktitle	= {Proc.\ 3rd Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {291},
  pages		= {55--66},
  year		= {1987},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@Book{		  Rozenberg:96,
  title		= {Special issue on graph transformation systems},
  editor	= {Grzegorz Rozenberg},
  series	= {Fundamanta Informaticae},
  volume	= {XXVII},
  number	= {1/2},
  year		= {1996},
  publisher	= {IOS Press},
  added		= {1996-08-02-14-49-29}
}

@Book{		  Rozenberg:97,
  title		= {Handbook of Graph Grammars and Computing by Graph
		  Transformation. Vol.\ {I}: Foundations},
  editor	= {Rozenberg, Grzegorz},
  year		= {1997},
  publisher	= {World Scientific},
  added		= {1997-03-18-10-42-26}
}

@Article{	  SAbraham:72,
  author	= {S.~Abraham},
  title		= {Compound and Serial Grammars},
  journal	= {Information and Control},
  volume	= {20},
  number	= {5},
  pages		= {431--438},
  year		= {1972},
  publisher	= {Academic Press},
  added		= {2000-05-23-18-31-23}
}

@Article{	  SChang:71,
  author	= {S.~Chang},
  title		= {Picture processing Grammar and its Applications},
  journal	= {Information Science},
  volume	= {3},
  number	= {2},
  pages		= {121--148},
  year		= {1971},
  publisher	= {Elsevier},
  added		= {2000-05-23-18-31-23}
}

@Article{	  SGerber-HHoyer:85,
  author	= {S.~Gerber and H.~Hoyer},
  title		= {Ersetzung in fragmentarischen Graphen},
  journal	= {Elektronische Informations-Verarbeitung und Kybernetik},
  volume	= {21},
  number	= {7/8},
  pages		= {385--400},
  year		= {1985},
  added		= {2000-05-23-18-31-23}
}

@Article{	  SGinsburg:76,
  author	= {S.~Ginsburg},
  title		= {A Survey of Grammar Forms},
  journal	= {Acta Cybernetica},
  volume	= {3},
  pages		= {296--280},
  year		= {1976},
  added		= {2000-05-23-18-31-23}
}

@InProceedings{	  SGroh:96,
  author	= {S.~Groh},
  title		= {Designing an efficient Resource Management for Parallel
		  Distributed Systems by the use of a Graph Replacement
		  System},
  booktitle	= {PDPTA'96 Proceedings of the International Conference on
		  Parallel and Distributed Processing Techniques and
		  Applications},
  pages		= {215--255},
  year		= {1996},
  added		= {2000-05-23-18-31-23},
  location	= {Sunnyvale}
}

@InCollection{	  SGroh:97,
  author	= {S.~Groh},
  title		= {Resourcen-Verwaltung in verteilten Systemen mit
		  Manager-Agenten am Beispiel der Speicher-Verwaltung},
  editor	= {O.~Spaniol},
  booktitle	= {Innovationsmotor Graduiertenkolleg},
  series	= {Aachener Beitr{\"a}ge zur Informatik},
  volume	= {21},
  year		= {1997},
  publisher	= {Augustinus-Verlag},
  address	= {Aachen},
  added		= {2000-05-23-18-31-23}
}

@Unpublished{	  SGruner-MKurt-GTaentzer:00,
  author	= {S.~Gruner and M.~Kurt and G.~Taentzer},
  title		= {A Visual Modeling Technique for Controling Graph
		  Transformations},
  editor	= {A.~Corradini and R.~Heckel},
  booktitle	= {Workshop on Graph Transformation and Visual Modelling},
  year		= {2000},
  note		= {Satellite to ICALP'2000. To be published by Carleton
		  Scientific},
  added		= {2000-05-23-18-31-23}
}

@InProceedings{	  SGruner-MNagl-ASchuerr:98,
  author	= {S.~Gruner and M.~Nagl and A.~Sch{\"u}rr},
  title		= {Integration Tools supporting Development Processes},
  editor	= {M.~Broy and B.~Rumpe},
  booktitle	= {RTSE'97 Workshop on Requirements Targeting Software and
		  Systems Engineering},
  series	= {Lecture Notes in Computer Science},
  volume	= {1526},
  pages		= {235--256},
  year		= {1998},
  publisher	= {Springer-Verlag},
  address	= {Berlin},
  added		= {2000-05-23-18-31-23}
}

@PhDThesis{	  SGruner:99,
  author	= {S.~Gruner},
  title		= {Eine schematische und grammatische Korrespondenz-Methode
		  zur Spezifikation konsistent verteilter Daten-Modelle},
  year		= {1999},
  school	= {Fakult{\"a}t f{\"u}r Mathematik, Naturwissenschaften und
		  Informatik, Rheinisch-Westf{\"a}lische Technische
		  Hochschule Aachen},
  note		= {Preface by T.~Pratt. Published by Shaker-Verlag Aachen},
  added		= {2000-05-23-18-31-23}
}

@Book{		  Salomaa:73,
  author	= {A. Salomaa},
  title		= {Formal Languages},
  year		= {1973},
  publisher	= {Academic Press},
  address	= {New York},
  added		= {1996-03-28-11-35-01}
}

@InProceedings{	  Sanfeliu-Fu:83,
  author	= {A. Sanfeliu and K. S. Fu},
  title		= {{Tree-Graph Grammars for Pattern Recognition}},
  editor	= {Hartmut Ehrig and Manfred Nagl and Grzegorz Rozenberg},
  booktitle	= {Proc.\ 2nd Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {153},
  pages		= {349--368},
  year		= {1983},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Savitch:79,
  author	= {Walter J. Savitch},
  title		= {{Graphs of Processors}},
  editor	= {Volker Claus and Hartmut Ehrig and Grzegorz Rozenberg},
  booktitle	= {Proc.\ 1st Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science and Biology},
  series	= {Lecture Notes in Computer Science},
  volume	= {73},
  pages		= {418--425},
  year		= {1979},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@Article{	  Saxe:80,
  author	= {J. Saxe},
  title		= {Dynamic Programming Algorithms for Recognizing
		  Small-Band\-width Graphs in Polynomial Time},
  journal	= {SIAM Journ. Algebraic Discrete Methods},
  volume	= {1},
  pages		= {363--369},
  year		= {1980},
  added		= {1996-03-13-10-09-20}
}

@TechReport{	  Schied:92,
  author	= {G. Schied},
  title		= {{{\"U}ber Graphgrammatiken: eine Spezifikationsmethode
		  f{\"u}r Programmiersprachen und verteilte Regelsysteme}},
  number	= {25-2},
  year		= {1992},
  institution	= {IMMD, Universit{\"a}t Erlangen},
  note		= {Doctoral dissertation},
  added		= {1996-08-02-14-49-29}
}

@Article{	  Schmeck:83,
  author	= {H. Schmeck},
  title		= {Algebraic Characterization of Reducible Flowcharts},
  journal	= {Journal of Computer and System Sciences},
  volume	= {27},
  pages		= {165--199},
  year		= {1983},
  added		= {1996-03-13-10-09-20}
}

@InCollection{	  Schmeck:83b,
  author	= {H. Schmeck},
  title		= {Flow Graph Grammars and Flow Graph Languages},
  editor	= {M. Nagl and J. Perl},
  booktitle	= {Graph-Theoretic Concepts in Computer Science},
  pages		= {319--329},
  year		= {1983},
  publisher	= {Trauner Verlag},
  address	= {Linz},
  added		= {1996-03-13-10-09-20}
}

@Book{		  Schmidt-Berghammer:91,
  title		= {Proc.\ Int.\ workshop on graphtheoretic concepts in
		  computer science},
  editor	= {G. Schmidt and R. Berghammer},
  series	= {Lecture Notes in Computer Science},
  volume	= {570},
  year		= {1991},
  publisher	= {Springer-Verlag},
  added		= {1996-08-02-14-49-29}
}

@Article{	  Schneider-Ehrig:76,
  author	= {Hans J{\"u}rgen Schneider and Hartmut Ehrig},
  title		= {Grammars on Partial Graphs},
  journal	= {Acta Informatica},
  volume	= {6},
  pages		= {297--316},
  year		= {1976},
  added		= {1996-03-13-10-09-20}
}

@Proceedings{	  Schneider-Ehrig:94,
  title		= {Graph Transformations in Computer Science},
  editor	= {Hans J{\"u}rgen Schneider and Hartmut Ehrig},
  series	= {Lecture Notes in Computer Science},
  volume	= {776},
  year		= {1994},
  added		= {1996-03-13-10-09-20}
}

@TechReport{	  Schneider:70,
  author	= {Hans J{\"u}rgen Schneider},
  title		= {{Chomsky-Systeme f\"ur partielle Ordnungen}},
  number	= {3,3},
  year		= {1970},
  institution	= {Institut f{\"u}r Mathematische Maschinen und
		  Datenverarbeitung},
  address	= {Erlangen},
  type		= {Arbeitsbericht},
  added		= {1996-03-13-10-09-20}
}

@TechReport{	  Schneider:71,
  author	= {Hans J{\"u}rgen Schneider},
  title		= {Formal Systems for Structure Manipulations},
  number	= {3/1/71},
  year		= {1971},
  institution	= {Berlin},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Schneider:75,
  author	= {Hans J{\"u}rgen Schneider},
  title		= {Syntax-Directed Description of Incremental Compilers},
  editor	= {D. Siefkes},
  booktitle	= {GI --- 4. Jahrestagung},
  series	= {Lecture Notes in Computer Science},
  volume	= {26},
  pages		= {192--201},
  year		= {1975},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Schneider:77,
  author	= {Hans J{\"u}rgen Schneider},
  title		= {Graph Grammars},
  editor	= {M. Karpi\'nski},
  booktitle	= {Fundamentals of Computation Theory},
  series	= {Lecture Notes in Computer Science},
  volume	= {56},
  pages		= {314--331},
  year		= {1977},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Schneider:90,
  author	= {Hans J{\"u}rgen Schneider},
  title		= {Describing Distributed Systems by Categorical Graph
		  Grammars},
  editor	= {M. Nagl},
  booktitle	= {Graph-Theoretic Concepts in Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {411},
  pages		= {121--135},
  year		= {1990},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Schneider:93,
  author	= {Hans J{\"u}rgen Schneider},
  title		= {On Categorical Graph Grammars: Integrating Structural
		  Transformations and Operations on Labels},
  journal	= {Theoretical Computer Science},
  volume	= {109},
  pages		= {257--274},
  year		= {1993},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Schnitzler:80,
  author	= {M. Schnitzler},
  title		= {Graph grammars and the complexity gap in the isomorphism
		  problem for acyclic digraphs},
  editor	= {H.. Noltemeier},
  booktitle	= {Graphtheoric Concepts in Computer Science, Proceedings of
		  the International Workshop WG'80},
  series	= {Lecture Notes in Computer Science},
  number	= {100},
  pages		= {137--149},
  year		= {1980},
  publisher	= {Springer-Verlag},
  added		= {1996-04-16-07-34-15}
}

@InProceedings{	  Schnitzler:83,
  author	= {Manfred Schnitzler},
  title		= {{The Isomorphism Problem is Polynomially Solvable for
		  Certain Graph Languages}},
  editor	= {Hartmut Ehrig and Manfred Nagl and Grzegorz Rozenberg},
  booktitle	= {Proc.\ 2nd Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {153},
  pages		= {369--379},
  year		= {1983},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@Manual{	  Schuerr,
  author	= {A. Sch{\"u}rr},
  title		= {A {G}uided {T}our through the {PROGRES} {E}nvironnement},
  organization	= {{RWTH} Aachen},
  address	= {D-52056 Aachen, Germany},
  added		= {1996-04-16-07-34-15}
}

@InProceedings{	  Schuerr:90,
  author	= {Andy Sch{\"u}rr},
  title		= {Introduction to {PROGRES}, an Attribute Graph Grammar
		  Based Specification Language},
  editor	= {M. Nagl},
  booktitle	= {Graph-Theoretic Concepts in Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {411},
  pages		= {151--165},
  year		= {1990},
  added		= {1996-03-13-10-09-20}
}

@Book{		  Schuerr:91,
  author	= {Andy Sch{\"u}rr},
  title		= {Operationales Spezifizieren mit programmierten
		  Graphersetzungssystemen: formale Definitionen
		  Anwendungsbeispiele und Werkzeugunterst{\"u}tzung},
  year		= {1991},
  publisher	= {Deutscher Universit{\"a}ts-Verlag},
  address	= {Wiesbaden},
  added		= {1996-03-13-10-09-20}
}

@PhDThesis{	  Schuerr:91b,
  author	= {A. Sch{\"u}rr},
  title		= {{O}perational {S}pecifications with {P}rogrammed {G}raph
		  {R}ewriting {S}ystems},
  year		= {1991},
  organization	= {{RWTH} Aachen},
  address	= {D-52056 Aachen, Germany},
  school	= {{RWTH} Aachen},
  added		= {1996-04-16-07-34-15}
}

@Book{		  Schuerr:91c,
  author	= {A. Sch{\"u}rr},
  title		= {{Operationales Spezifizieren mit programmierten
		  Graphersetzungssystemen: formale Definitionen, Anwendungen
		  und Werkzeuge}},
  year		= {1991},
  publisher	= {Deutscher Universit{\"a}tsverlag},
  note		= {Dissertation, RWTH Aachen},
  added		= {1996-08-02-14-49-29}
}

@InProceedings{	  Schuerr:91d,
  author	= {Andy Sch{\"u}rr},
  title		= {{IPSEN-Environment: An Integrated and Incremental Project
		  Support ENvironment}},
  editor	= {Hartmut Ehrig and Hans-J{\"o}rg Kreowski and Grzegorz
		  Rozenberg},
  booktitle	= {Proc.\ 4th. Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {532},
  pages		= {66},
  year		= {1991},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Schuerr:91e,
  author	= {Andy Sch{\"u}rr},
  title		= {{PROGRES: A VHL-Language Based on Graph Grammars}},
  editor	= {Hartmut Ehrig and Hans-J{\"o}rg Kreowski and Grzegorz
		  Rozenberg},
  booktitle	= {Proc.\ 4th. Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {532},
  pages		= {641--659},
  year		= {1991},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Schuerr:91f,
  author	= {Andy Sch{\"u}rr},
  title		= {{PROGRES-Editor: A Text-Oriented Hybrid Editor for
		  PROgrammed Graph REwriting SyStems}},
  editor	= {Hartmut Ehrig and Hans-J{\"o}rg Kreowski and Grzegorz
		  Rozenberg},
  booktitle	= {Proc.\ 4th. Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {532},
  pages		= {67},
  year		= {1991},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Schuerr:94,
  ATTENTION	= {newer record added: Aug 02, 1996},
  author	= {Andy Sch{\"u}rr},
  title		= {Rapid Programming with Graph Rewrite Rules},
  booktitle	= {USENIX Symp. Very High Level Languages (VHLL),Santa Fee,
		  New Mexico},
  pages		= {83--100},
  year		= {1994},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Schuerr:94b,
  author	= {A. Sch{\"u}rr},
  title		= {A fixpoint semantics for programmed graph
		  transformations},
  editor	= {Valente Feruglio et al.},
  booktitle	= {Proc. Colloq. on graph transformations and its applic. in
		  comp.\ sci.},
  journal	= {Tech. report B-14},
  year		= {1994},
  publisher	= {Universitat de les Illes Balears},
  added		= {1996-08-02-14-49-29}
}

@TechReport{	  Schuerr:94c,
  author	= {A. Sch{\"u}rr},
  title		= {{PROGRES}, a visual language and environment for
		  programming with graph rewrite systems},
  number	= {AIB 94-11},
  year		= {1994},
  institution	= {RWTH Aachen},
  added		= {1996-08-02-14-49-29}
}

@InProceedings{	  Schuerr:94d,
  author	= {A. Sch{\"u}rr},
  title		= {Rapid Programming with Graph Rewrite Rules},
  booktitle	= {USENIX Symposium on Very High Level Languages},
  pages		= {83--100},
  year		= {1994},
  publisher	= {USENIX Association},
  added		= {1996-08-02-14-49-29}
}

@InProceedings{	  Schuerr:94e,
  author	= {A. Sch{\"u}rr},
  title		= {Specification of graph translators with triple graph
		  grammars},
  editor	= {G. Tinhofer},
  booktitle	= {Proc. {WG94} int.workshop on graph theoretic concepts in
		  comp.\ sci.},
  series	= {Lecture Notes in Computer Science},
  volume	= {903},
  pages		= {151--163},
  year		= {1994},
  publisher	= {Springer-Verlag},
  address	= {Herrsching},
  added		= {1996-08-02-14-49-29}
}

@Article{	  Schuerr:95,
  author	= {A. Sch{\"u}rr},
  title		= {Logic Based Programmed Structure Rewriting Systems},
  journal	= {Fundamentae Informaticae, Special Issue on Graph
		  Transformation Systems},
  year		= {1995},
  note		= {to appear},
  added		= {1996-08-02-14-49-29}
}

@Article{	  Schuerr:96,
  author	= {Andy Sch{\"u}rr},
  title		= {Logic Based Programmed Structure Rewriting Systems},
  journal	= {Fundamenta Informaticae},
  volume	= {XXVII},
  year		= {1996},
  note		= {To appear},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Schuerr:96b,
  ATTENTION	= {newer record added: Jul 30, 1996},
  author	= {Andy Sch{\"u}rr},
  title		= {Programmed Graph Transformations and Graph Transformation
		  Units in {GRACE}},
  booktitle	= {Graph Grammars and Their Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  year		= {1996},
  note		= {To appear},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Schuerr:96c,
  author	= {Andy Sch{\"u}rr},
  title		= {{Programmed Graph Transformations and Graph Transformation
		  Units in GRACE}},
  editor	= {Janice E. Cuny and Hartmut Ehrig and Gregor Engels and
		  Grzegorz Rozenberg},
  booktitle	= {Proc.\ 5th Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {1073},
  pages		= {122--136},
  year		= {1996},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InCollection{	  Schuerr:97,
  author	= {Sch\"urr, Andy},
  title		= {Programmed Graph Replacement Systems},
  editor	= {Rozenberg, G.},
  booktitle	= {Handbook of Graph Grammars and Computing by Graph
		  Transformation. Vol.\ {I}: Foundations},
  chapter	= {7},
  pages		= {479--546},
  year		= {1997},
  publisher	= {World Scientific},
  added		= {1997-03-17-16-11-19}
}

@Manual{	  Schuerrb,
  author	= {A. {S}ch{\"u}rr},
  title		= {{PROGRES} for {B}eginners},
  organization	= {{RWTH} Aachen},
  address	= {D-52056 Aachen, Germany},
  added		= {1996-04-16-07-34-15}
}

@Book{		  Schuette:87,
  author	= {A. Sch{\"u}tte},
  title		= {Spezifikation und Generierung von {\"U}bersetzern f{\"u}r
		  Graph-Sprachen durch attributierte Graph-Grammatiken,
		  Ph.{D}. Thesis},
  year		= {1987},
  publisher	= {Express-Edition},
  address	= {Berlin},
  added		= {1996-03-13-10-09-20}
}

@Book{		  Schuette:87b,
  author	= {A. Sch{\"u}tte},
  title		= {{Spezifikation und Generierung von {\"U}bersetzern f{\"u}r
		  Graphsprachen durch attributierte Grammatiken}},
  year		= {1987},
  publisher	= {Express Edition},
  note		= {Dissertation, EWH Koblenz},
  added		= {1996-08-02-14-49-29}
}

@PhDThesis{	  Schuster:87,
  author	= {R{\"u}diger Schuster},
  title		= {{Graphgrammatiken und Grapheinbettung --- Algorithmen und
		  Komplexit\"at}},
  year		= {1987},
  school	= {Passau},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Schween-Taentzer:91,
  author	= {Holger Schween and Gabriele Taentzer},
  title		= {Movement of Objects in Configuration Spaces Modelled by
		  Graph Grammars},
  editor	= {H. Ehrig and H.-J. Kreowski and G. Rozenberg},
  booktitle	= {Graph Grammars and Their Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {532},
  pages		= {660--675},
  year		= {1991},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Seese:,
  author	= {Detlef Seese},
  title		= {The Structure of the Models of Decidable Monadic Theories
		  of Graphs},
  journal	= {Preprint 1987, to appear in the Journ. of Pure and Applied
		  Logic},
  year		= {??},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Seese:85,
  author	= {Detlef Seese},
  title		= {Tree-Partite Graphs and the Complexity of Algorithms},
  editor	= {L. Budach},
  booktitle	= {Fundamentals of Computation Theory},
  series	= {Lecture Notes in Computer Science},
  volume	= {199},
  pages		= {412--421},
  year		= {1985},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Seidl:92,
  author	= {Helmut Seidl},
  title		= {Finite Tree Automata with Cost Functions},
  editor	= {J.-C. Raoult},
  booktitle	= {CAAP 92},
  series	= {Lecture Notes in Computer Science},
  volume	= {581},
  pages		= {279--299},
  year		= {1992},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Seidl:92b,
  author	= {Helmut Seidl},
  title		= {Single-Valuedness of Tree Transducers is Decidable in
		  Polynomial Time},
  journal	= {Theoretical Computer Science},
  volume	= {106},
  pages		= {135--181},
  year		= {1992},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Seidl:94,
  author	= {Helmut Seidl},
  title		= {Equivalence of Finite-Valued Tree Transducers Is
		  Decidable},
  journal	= {Mathematical Systems Theory},
  volume	= {27},
  pages		= {285--346},
  year		= {1994},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Seidl:94b,
  author	= {Helmut Seidl},
  title		= {Finite Tree Automata with Cost Functions},
  journal	= {Theoretical Computer Science},
  volume	= {126},
  pages		= {113--142},
  year		= {1994},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Seidl:94c,
  author	= {Helmut Seidl},
  title		= {Least Solutions of Equations over ${\cal N}$},
  editor	= {Serge Abiteboul and Eli Shamir},
  booktitle	= {Automata, Languages and Programming},
  series	= {Lecture Notes in Computer Science},
  volume	= {820},
  pages		= {400--411},
  year		= {1994},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Shaw:69,
  author	= {A. C. Shaw},
  title		= {A Formal Description Schema as a Basis for Picture
		  Processing Systems},
  journal	= {Information and Control},
  volume	= {14},
  pages		= {9--52},
  year		= {1969},
  added		= {1996-03-28-11-35-01}
}

@InProceedings{	  Sheu-Long:92,
  author	= {M.-J. Sheu and T. J. Long},
  title		= {{UP} and the Low and High Heirarchies: {A} Relativized
		  Separation},
  editor	= {W. Kuich},
  booktitle	= {Automata, Languages and Programming, 19th International
		  Colloquium, Wien, Austria},
  series	= {Lecture Notes in Computer Science},
  number	= {623},
  pages		= {174--185},
  year		= {1992},
  publisher	= {Springer-Verlag},
  added		= {1996-04-16-07-34-15}
}

@InProceedings{	  Siromoney-Subramanian:83,
  author	= {Rani Siromoney and K. G. Subramanian},
  title		= {{Space-Filling Curves and Infinite Graphs}},
  editor	= {Hartmut Ehrig and Manfred Nagl and Grzegorz Rozenberg},
  booktitle	= {Proc.\ 2nd Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {153},
  pages		= {380--391},
  year		= {1983},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Siromoney:87,
  author	= {Rani Siromoney},
  title		= {{Advances in Array Languages}},
  editor	= {Hartmut Ehrig and Manfred Nagl and Grzegorz Rozenberg and
		  Azriel Rosenfeld},
  booktitle	= {Proc.\ 3rd Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {291},
  pages		= {549--563},
  year		= {1987},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@Article{	  Skodinis-Wanke:95,
  author	= {Kostantin Skodinis and Wanke},
  title		= {Emptiness Problems of {eNCE} Graph Languages},
  journal	= {Journal of Computer and System Sciences},
  volume	= {51},
  pages		= {472--485},
  year		= {1995},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Skodinis-Wanke:95b,
  author	= {Kostantin Skodinis and Wanke},
  title		= {Exponential Time Analysis of Confluent and Boundary {eNCE}
		  Graph Languages},
  editor	= {W. {Mayr, Ernst} and Gunter Schmidt and Gottfried
		  Tinhofer},
  booktitle	= {Graph-Theoretic Concepts in Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {903},
  pages		= {180--192},
  year		= {1995},
  added		= {1996-03-13-10-09-20}
}

@Unpublished{	  Skodinis-Wanke:95c,
  author	= {Kostantin Skodinis and Wanke},
  title		= {The Bounded Degree Problem for Nonobstructing {eNCE} Graph
		  Grammars},
  year		= {1995},
  note		= {Submitted for publication},
  added		= {1996-03-13-10-09-20}
}

@Unpublished{	  Skodinis-Wanke:95d,
  author	= {Kostantin Skodinis and Wanke},
  title		= {The Complexity of the Bounded Degree Problem for {eNCE}
		  Graph Grammars},
  year		= {1995},
  note		= {Submitted for publication},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Skodinis-Wanke:96,
  author	= {K. Skodinis and Egon Wanke},
  title		= {{The Bounded Degree Problem for Non-Obstructing eNCE Graph
		  Grammars}},
  editor	= {Janice E. Cuny and Hartmut Ehrig and Gregor Engels and
		  Grzegorz Rozenberg},
  booktitle	= {Proc.\ 5th Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {1073},
  pages		= {211--224},
  year		= {1996},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@Proceedings{	  Sleep-Plasmeijer-vanEekelen:93,
  title		= {Term Graph Rewriting. Theory and Practice},
  editor	= {Ronan Sleep and Rinus Plasmeijer and Marko {van Eekelen}},
  year		= {1993},
  publisher	= {John Wiley},
  address	= {Chichester},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Slisenko:82,
  author	= {A. O. Slisenko},
  title		= {Context-Free Graph Grammars as a Tool for Describing
		  Polynomial-time Subclasses of Hard Problems},
  journal	= {Information Processing Letters},
  volume	= {14},
  pages		= {52--56},
  year		= {1982},
  added		= {1996-03-13-10-09-20}
}

@MastersThesis{	  Sobbe:95,
  author	= {Sobbe, G.},
  title		= {{Modellierung und Generierung von
		  Softwareentwickluingsumgebungen mit Graphgrammatiken}},
  year		= {1995},
  address	= {RWTH Aachen},
  type		= {Diplomarbeit},
  school	= {Lehrstuhl f{\"u}r Informatik III},
  added		= {1996-11-28-18-33-07}
}

@Article{	  Solms:84,
  author	= {S. H. von Solms},
  title		= {Node-Label Controlled Graph Grammars with Context
		  Conditions},
  journal	= {Int. Journal of Computer Mathematics},
  volume	= {15},
  pages		= {39--49},
  year		= {1984},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Sopena:87,
  author	= {Eric Sopena},
  title		= {Combinatorial Hypermap Rewriting},
  editor	= {P. Lescanne},
  booktitle	= {Rewriting Techniques and Applications},
  series	= {Lecture Notes in Computer Science},
  volume	= {256},
  pages		= {62--73},
  year		= {1987},
  note		= {To appear in Theoretical Computer Science},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Sowa:79,
  author	= {John F. Sowa},
  title		= {{Definitional Mechanisms for Conceptual Graphs}},
  editor	= {Volker Claus and Hartmut Ehrig and Grzegorz Rozenberg},
  booktitle	= {Proc.\ 1st Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science and Biology},
  series	= {Lecture Notes in Computer Science},
  volume	= {73},
  pages		= {426--439},
  year		= {1979},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@Book{		  Sowa:84,
  author	= {J. F. Sowa},
  title		= {Conceptual Structures: Information Processing in Minds and
		  Machines},
  year		= {1984},
  publisher	= {Addison-Wesley},
  address	= {Reading, Mass.},
  added		= {1996-03-13-10-09-20}
}

@InCollection{	  Sowa:87,
  author	= {J. F. Sowa},
  title		= {Semantic Networks},
  editor	= {S. C. Shapiro},
  booktitle	= {Encyclopedia of Artificial Intelligence 2},
  year		= {1987},
  publisher	= {John Wiley \& Sons},
  address	= {New York},
  added		= {1996-03-13-10-09-20}
}

@MastersThesis{	  Speulmanns:95,
  author	= {Speulmanns, A.},
  title		= {{Visuelles Programmieren mit Graphersetzungsregeln}},
  year		= {1995},
  address	= {RWTH Aachen},
  type		= {Diplomarbeit},
  school	= {Lehrstuhl f{\"u}r Informatik III},
  added		= {1996-11-28-18-33-07},
  subtitle	= {Integration neuer Konzepte in PROGRES}
}

@MastersThesis{	  Spielmann:89,
  author	= {Spielmann, R.},
  title		= {{Entwicklung einer Basisschicht zur
		  Graphgrammatikinterpretation}},
  year		= {1989},
  address	= {RWTH Aachen},
  type		= {Diplomarbeit},
  school	= {Lehrstuhl f{\"u}r Informatik III},
  added		= {1996-11-28-18-33-07}
}

@InProceedings{	  Staples:79,
  author	= {John Staples},
  title		= {{A Graph-Like Lambda Calculus for which Leftmost-Outermost
		  Reduction is Optimal}},
  editor	= {Volker Claus and Hartmut Ehrig and Grzegorz Rozenberg},
  booktitle	= {Proc.\ 1st Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science and Biology},
  series	= {Lecture Notes in Computer Science},
  volume	= {73},
  pages		= {440--455},
  year		= {1979},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@Article{	  Staples:80,
  author	= {J. Staples},
  title		= {Computation on Graph-Like Expressions},
  journal	= {Theoretical Computer Science},
  volume	= {10},
  pages		= {171--185},
  year		= {1980},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Staples:80b,
  author	= {J. Staples},
  title		= {Optimal Evaluations of Graph-Like Expressions},
  journal	= {Theoretical Computer Science},
  volume	= {10},
  pages		= {297--316},
  year		= {1980},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Staples:80c,
  author	= {J. Staples},
  title		= {Speeding up Subtree Replacement Systems},
  journal	= {Theoretical Computer Science},
  volume	= {11},
  pages		= {39--47},
  year		= {1980},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Staples:83,
  author	= {J. Staples},
  title		= {Two-level expression represntation for faster evaluation},
  editor	= {H. Ehrig and M. Nagl and G. Rozenberg},
  booktitle	= {Graph Grammars and Their Application to Computer Science,
		  2nd International Workshop, Haus Ohrbeck, Germany},
  series	= {Lecture Notes in Computer Sciences},
  number	= {153},
  pages		= {392--404},
  year		= {1983},
  publisher	= {Spinger-Verlag},
  added		= {1996-04-16-07-34-15}
}

@InProceedings{	  Staples:83b,
  author	= {John Staples},
  title		= {{Two-Level Expression Representation for Faster
		  Evaluation}},
  editor	= {Hartmut Ehrig and Manfred Nagl and Grzegorz Rozenberg},
  booktitle	= {Proc.\ 2nd Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {153},
  pages		= {392--404},
  year		= {1983},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@Article{	  Syslo:79,
  author	= {Maciej M. Syslo},
  title		= {Characterization of Outerplanar Graphs},
  journal	= {Discrete Mathematics},
  volume	= {26},
  pages		= {47--53},
  year		= {1979},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Syslo:82,
  author	= {Maciej M. Syslo},
  title		= {The Subgraph Isomorphism Problem for Outerplanar Graphs},
  journal	= {Theoretical Computer Science},
  volume	= {17},
  pages		= {91--97},
  year		= {1982},
  added		= {1996-03-13-10-09-20}
}

@InCollection{	  Syslo:83,
  author	= {Maciej M. Syslo},
  title		= {{NP}-Complete Problems on Some Tree-Structured Graphs: {A}
		  Review},
  editor	= {M. Nagl and J. Perl},
  booktitle	= {Graph-Theoretic Concepts in Computer Science},
  pages		= {342--353},
  year		= {1983},
  publisher	= {Trauner Verlag},
  address	= {Linz},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  TJanning-MLefering:90,
  author	= {T.~Janning and M.~Lefering},
  title		= {Transformation of Requirements Engineering into Design:
		  the Method and the Tool},
  booktitle	= {Proceedings of the 3rd International Workshop on Software
		  Engineering and its Application},
  pages		= {223--238},
  year		= {1990},
  added		= {2000-05-23-18-31-23},
  location	= {Toulouse}
}

@PhDThesis{	  TJanning:92,
  author	= {T.~Janning},
  title		= {Requirements Engineering und Programmieren im Gro{\ss}en:
		  Integration von Sprachen und Werkzeugen},
  year		= {1992},
  school	= {Fakult{\"a}t f{\"u}r Mathematik, Naturwissenschaften und
		  Informatik, Rheinisch-Westf{\"a}lische Technische
		  Hochschule Aachen},
  note		= {Published by Deutscher Universit{\"a}tsverlag, Wiesbaden},
  added		= {2000-05-23-18-31-23}
}

@Article{	  TPavlidis-MYannakakis:79,
  author	= {T.~Pavlidis and M.~Yannakakis},
  title		= {Topological Characterization of Families of Graphs
		  generated by certain types of Graph Grammars},
  journal	= {Information and Control},
  volume	= {42},
  number	= {1},
  pages		= {72--86},
  year		= {1979},
  publisher	= {Academic Press},
  added		= {2000-05-23-18-31-23}
}

@InProceedings{	  Taentzer-Beyer:94,
  author	= {Gabriele Taentzer and Martin Beyer},
  title		= {Amalgamated Graph Transformations and Their Use for
		  Specifying {AGG} --- an Algebraic Graph Grammar System},
  editor	= {Hans J{\"u}rgen Schneider and Hartmut Ehrig},
  booktitle	= {Graph Transformations in Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {776},
  pages		= {380--394},
  year		= {1994},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Taentzer-Schween:91,
  author	= {Gabriele Taentzer and Holger Schween},
  title		= {{Movement of Objects in Configuration Spaces modelled by
		  Graph Grammars}},
  editor	= {Hartmut Ehrig and Hans-J{\"o}rg Kreowski and Grzegorz
		  Rozenberg},
  booktitle	= {Proc.\ 4th. Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {532},
  pages		= {660--675},
  year		= {1991},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@Article{	  Taentzer:95,
  author	= {Gabriele Taentzer},
  title		= {Parallel High-Level Replacement Systems},
  journal	= {Theoretical Computer Science},
  year		= {1995},
  note		= {To appear},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Taentzer:96,
  author	= {Gabriele Taentzer},
  title		= {Towards Synchronous and Asynchronous Graph
		  Transformations},
  journal	= {Fundamenta Informaticae},
  year		= {1996},
  note		= {To appear},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Taentzer:96b,
  author	= {Taentzer, Gabriele},
  title		= {Hierarchically Distributed Graph Transformations},
  editor	= {J. Cuny and H. Ehrig and G. Engels and G. Rozenberg},
  booktitle	= {Proc. Fifth Intl. Workshop on Graph Grammars and Their
		  Application to Comp. Sci.},
  series	= {Lecture Notes in Computer Science},
  volume	= {1073},
  pages		= {304--320},
  year		= {1996},
  publisher	= {Springer},
  added		= {1996-08-02-16-55-34}
}

@PhDThesis{	  Taentzer:96c,
  author	= {Taentzer, G.},
  title		= {Parallel and Distributed Graph Transformation: Formal
		  Description and Application to Communication-Based
		  Systems},
  year		= {1996},
  school	= {TU Berlin},
  note		= {Shaker Verlag},
  added		= {1998-01-22-10-35-50},
  creatorofitem	= {gabi-960925}
}

@InProceedings{	  Taentzer:96d,
  author	= {Gabriele Taentzer},
  title		= {{Hierarchically Distributed Graph Transformation}},
  editor	= {Janice E. Cuny and Hartmut Ehrig and Gregor Engels and
		  Grzegorz Rozenberg},
  booktitle	= {Proc.\ 5th Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {1073},
  pages		= {304--320},
  year		= {1996},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@Article{	  Taentzer:97,
  author	= {Taentzer, G.},
  title		= {Distributed Graphs and Graph Transformation},
  journal	= {Applied categorical Structures},
  year		= {1997},
  note		= {Submitted},
  added		= {1998-01-22-10-35-50},
  creatorofitem	= {gabi-970122}
}

@Article{	  Takamizawa-Nishizeki-Saito:82,
  author	= {K. Takamizawa and T. Nishizeki and N. Saito},
  title		= {Linear-Time Computability Problems on Series-Parallel
		  Graphs},
  journal	= {Journal of the ACM},
  volume	= {29},
  number	= {3},
  pages		= {623--641},
  year		= {1982},
  added		= {1996-03-13-10-09-20}
}

@TechReport{	  Taubenberger:94,
  author	= {Stefan Taubenberger},
  title		= {Correct Translations of Generalized Iterated Function
		  Systems to Collage Grammars},
  number	= {7/94},
  year		= {1994},
  institution	= {Bremen},
  type		= {Technical Report},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Turan:83,
  author	= {G. Tur\'an},
  title		= {On the Complexity of Graph Grammars},
  journal	= {Acta Cybern.},
  volume	= {6},
  pages		= {271--281},
  year		= {1983},
  added		= {1996-03-13-10-09-20}
}

@Article{	  UMontanari-ACorradini-FRossi:96,
  author	= {U.~Montanari and A.~Corradini and F.~Rossi},
  title		= {Graph Processes},
  journal	= {Fundamenta Informaticae},
  volume	= {26},
  pages		= {241--265},
  year		= {1996},
  publisher	= {IOS Press},
  added		= {2000-05-23-18-31-23}
}

@Article{	  UMontanari:70,
  author	= {U.~Montanari},
  title		= {Separable Graphs, Planar Graphs and Web Grammars},
  journal	= {Information and Control},
  volume	= {16},
  number	= {3},
  pages		= {234--267},
  year		= {1970},
  publisher	= {Academic Press},
  added		= {2000-05-23-18-31-23}
}

@Book{		  UPape:75,
  title		= {WG'75: 1. Fachtagung {\"u}ber Graphentheoretische Konzepte
		  der Informatik},
  editor	= {U.~Pape},
  series	= {Berichte zur Praktischen Informatik},
  volume	= {1},
  year		= {1975},
  publisher	= {Hanser-Verlag},
  address	= {M{\"u}nchen},
  added		= {2000-05-23-18-31-23}
}

@Book{		  UPape:79,
  title		= {WG'79: 5th Conference on Graph Theoretic Concepts in
		  Computer Science},
  editor	= {U.~Pape},
  year		= {1979},
  publisher	= {Hanser-Verlag},
  address	= {M{\"u}nchen},
  note		= {Continuation of the WG {\em Fachtagung}},
  added		= {2000-05-23-18-31-23}
}

@Book{		  UPape:84,
  title		= {WG'84: International Workshop on Graph Theoretic Concepts
		  in Computer Science},
  editor	= {U.~Pape},
  year		= {1984},
  publisher	= {Trauner-Verlag},
  address	= {Linz},
  note		= {Continuation of the WG {\em Fachtagung}},
  added		= {2000-05-23-18-31-23}
}

@Article{	  Uesu:78,
  author	= {Tadahiro Uesu},
  title		= {A System of Graph Grammars which Generates all Recursively
		  Enumerable Sets of Labelled Graphs},
  journal	= {Tsukuba J. Math.},
  volume	= {2},
  pages		= {11--26},
  year		= {1978},
  added		= {1996-03-13-10-09-20}
}

@Article{	  VRayward-Smith:77,
  author	= {V.~Rayward-Smith},
  title		= {Hypergrammars, an Extension of Macro Grammars},
  journal	= {Journal of Computer and System Sciences},
  volume	= {14},
  number	= {1},
  pages		= {130--149},
  year		= {1977},
  publisher	= {Academic Press},
  added		= {2000-05-23-18-31-23}
}

@Misc{		  Van-Hentenrynck:89,
  author	= {Van Hentenrynck, P.},
  title		= {Constraint satisfaction in logic programming},
  year		= {1989},
  publisher	= {MIT press},
  added		= {1996-08-02-14-49-29}
}

@Article{	  Vere:77,
  author	= {S. A. Vere},
  title		= {Relational Production Systems},
  journal	= {Artificial Intelligence},
  volume	= {8},
  pages		= {47--68},
  year		= {1977},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Vogler:90,
  author	= {Walter Vogler},
  title		= {On Hyperedge Replacement and {BNLC} Graph Grammars},
  editor	= {M. Nagl},
  booktitle	= {Graph-Theoretic Concepts in Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {411},
  pages		= {78--93},
  year		= {1990},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Vogler:91,
  author	= {Walter Vogler},
  title		= {{Recognizing Edge Replacement Graph Languages in Cubic
		  Time}},
  editor	= {Hartmut Ehrig and Hans-J{\"o}rg Kreowski and Grzegorz
		  Rozenberg},
  booktitle	= {Proc.\ 4th. Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {532},
  pages		= {676--687},
  year		= {1991},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@Article{	  Vogler:93,
  author	= {Walter Vogler},
  title		= {On Hyperedge Replacement and {BNLC} Graph Grammars},
  journal	= {Discrete Applied Mathematics},
  volume	= {46},
  pages		= {253--273},
  year		= {1993},
  added		= {1996-03-13-10-09-20}
}

@TechReport{	  WBrendel-EGroetsch-MNagl.ea:77,
  author	= {W.~Brendel and E.~Gr{\"o}tsch and M.~Nagl and
		  H.-J.~Schneider},
  title		= {Graph-Ersetzungs-Systeme: Beitr{\"a}ge zur Theorie,
		  Anwendung und Implementierung},
  series	= {Arbeitsberichte des IMMD},
  volume	= {10},
  number	= {8},
  year		= {1977},
  institution	= {Friedrich-Alexander-Universit{\"a}t Erlangen-N{\"u}rnberg},
  added		= {2000-05-23-18-31-23}
}

@TechReport{	  WBrendel-MNagl-TFruehauf:76,
  author	= {W.~Brendel and M.~Nagl and T.~Fr{\"u}hauf},
  title		= {Graph Rewriting Systems 2: Three Papers on Theory,
		  Application and Implementation},
  series	= {Arbeitsberichte des IMMD},
  volume	= {9},
  number	= {1},
  year		= {1976},
  institution	= {Friedrich-Alexander-Universit{\"a}t Erlangen-N{\"u}rnberg},
  added		= {2000-05-23-18-31-23}
}

@Article{	  Wald-Colbourn:83,
  author	= {J. Wald and C. Colbourn},
  title		= {Steiner Trees, Partial 2-Trees, and Minimum {IFI}
		  Networks},
  journal	= {Networks},
  volume	= {13},
  pages		= {159--167},
  year		= {1983},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Wanke-Skodinis:96,
  author	= {Wanke, Egon and Skodinis, Kostantin},
  title		= {The Bounded Degree Problem for Non-Obstructing {eNCE}
		  Graph Grammars},
  editor	= {J. Cuny and H. Ehrig and G. Engels and G. Rozenberg},
  booktitle	= {Proc. Fifth Intl. Workshop on Graph Grammars and Their
		  Application to Comp. Sci.},
  series	= {Lecture Notes in Computer Science},
  volume	= {1073},
  pages		= {211--224},
  year		= {1996},
  publisher	= {Springer},
  added		= {1996-08-02-16-55-34}
}

@Article{	  Wanke-Wiegers:89,
  author	= {Egon Wanke and Manfred Wiegers},
  title		= {Undecidability of the Bandwidth Problem on Linear Graph
		  Languages},
  journal	= {Information Processing Letters},
  volume	= {33},
  pages		= {193--197},
  year		= {1989},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Wanke:88,
  author	= {Egon Wanke},
  title		= {{PLEXUS}: {A} System for Implementing Hierarchical Graph
		  Algorithms},
  editor	= {R. Cori and M. Wirsing},
  booktitle	= {STACS'88},
  series	= {Lecture Notes in Computer Science},
  volume	= {294},
  pages		= {403--404},
  year		= {1988},
  added		= {1996-03-13-10-09-20}
}

@PhDThesis{	  Wanke:89,
  author	= {Egon Wanke},
  title		= {Algorithmen und Komplexit{\"a}tsanalyse f{\"u}r die
		  Verarbeitung hierarchisch definierter Graphen und
		  hierarchisch definierter Graphfamilien},
  year		= {1989},
  school	= {Paderborn},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Wanke:91,
  author	= {Egon Wanke},
  title		= {Algorithms for Graph Problems on {BNLC} Structured
		  Graphs},
  journal	= {Information and Computation},
  volume	= {94},
  pages		= {93--122},
  year		= {1991},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Wanke:91b,
  author	= {Egon Wanke},
  title		= {On the Decidability of Integer Subgraph Problems on
		  Context-Free Graph Languages},
  editor	= {L. Budach},
  booktitle	= {Proc.\ Fundamentals of Computation Theory},
  series	= {Lecture Notes in Computer Science},
  volume	= {529},
  pages		= {415--426},
  year		= {1991},
  publisher	= {Springer},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Wanke:91c,
  author	= {Egon Wanke},
  title		= {{PLEXUS: Tools for Analyzing Graph Grammars}},
  editor	= {Hartmut Ehrig and Hans-J{\"o}rg Kreowski and Grzegorz
		  Rozenberg},
  booktitle	= {Proc.\ 4th. Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {532},
  pages		= {68--69},
  year		= {1991},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@Article{	  Wanke:94,
  author	= {Egon Wanke},
  title		= {On the Decidability of Certain Integer Subgraph Problems
		  on Context-Free Graph Languages},
  journal	= {Information and Computation},
  volume	= {113},
  pages		= {26--49},
  year		= {1994},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Wanke:94b,
  author	= {Egon Wanke},
  title		= {The Complexity of Connectivity Problems on Context-Free
		  Graph Languages},
  journal	= {Journal of Computer and System Sciences},
  volume	= {49},
  pages		= {57--82},
  year		= {1994},
  added		= {1996-03-13-10-09-20}
}

@PhDThesis{	  Wankmueller:82,
  author	= {Frank Wankm{\"u}ller},
  title		= {Charakterisierung von Graphklassen durch verbotene
		  Strukturen und Reduktionen},
  year		= {1982},
  school	= {Dortmund},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Wankmueller:83,
  author	= {Frank Wankm{\"u}ller},
  title		= {Characterization of Graph Classes by Forbidden Structures
		  and Reductions},
  journal	= {Lecture Notes in Computer Science},
  volume	= {153},
  pages		= {405--414},
  year		= {1983},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Wankmueller:83b,
  author	= {F. Wankm{\"u}ller},
  title		= {{Characterization of Graph Classes by Forbidden Structures
		  and Reductions}},
  editor	= {Hartmut Ehrig and Manfred Nagl and Grzegorz Rozenberg},
  booktitle	= {Proc.\ 2nd Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {153},
  pages		= {405--414},
  year		= {1983},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@Article{	  Wankmueller:87,
  author	= {Frank Wankm{\"u}ller},
  title		= {Applications of Graph Grammars in Music Composing
		  Systems},
  journal	= {Lecture Notes in Computer Science},
  volume	= {291},
  pages		= {580--592},
  year		= {1987},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Wankmueller:87b,
  author	= {F. Wankm{\"u}ller},
  title		= {{Application of Graph Grammars in Music Composing
		  Systems}},
  editor	= {Hartmut Ehrig and Manfred Nagl and Grzegorz Rozenberg and
		  Azriel Rosenfeld},
  booktitle	= {Proc.\ 3rd Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {291},
  pages		= {580--592},
  year		= {1987},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InCollection{	  Welzl:86,
  author	= {Emo Welzl},
  title		= {On the Set of all Subgraphs of the Graphs in a Boundary
		  {NLC} Graph Language},
  editor	= {G. Rozenberg and A. Salomaa},
  booktitle	= {The Book of L},
  pages		= {445--459},
  year		= {1986},
  publisher	= {Springer-Verlag},
  address	= {Berlin},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Welzl:87,
  author	= {Emo Welzl},
  title		= {Boundary {NLC} and Partition Controlled Graph Grammars},
  journal	= {Lecture Notes in Computer Science},
  volume	= {291},
  pages		= {593--609},
  year		= {1987},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Welzl:87b,
  author	= {Emo Welzl},
  title		= {{Boundary NLC and Partition Controlled Graph Grammars}},
  editor	= {Hartmut Ehrig and Manfred Nagl and Grzegorz Rozenberg and
		  Azriel Rosenfeld},
  booktitle	= {Proc.\ 3rd Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {291},
  pages		= {593--609},
  year		= {1987},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@Book{		  Westfechtel:91,
  author	= {B. Westfechtel},
  title		= {Revisions- und Konsistenzkontrolle in einer integrierten
		  Softwareentwicklungsumgebung},
  series	= {Informatik-Fachberichte},
  volume	= {280},
  year		= {1991},
  publisher	= {Springer-Verlag},
  address	= {Berlin},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Westfechtel:94,
  author	= {B. Westfechtel},
  title		= {Using Programmed Graph Rewriting for the Formal
		  Specification of a Configuration Management System},
  editor	= {G. Tinhofer},
  booktitle	= {Proceedings WG' 94 Workshop on Graph-Theoretic Concepts in
		  Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {903},
  pages		= {164--179},
  year		= {1994},
  publisher	= {Springer-Verlag},
  added		= {1996-08-02-14-49-29}
}

@Article{	  Westfechtel:96,
  author	= {B. Westfechtel},
  title		= {Integrated Product and Process Management for Engineering
		  Design Applications},
  journal	= {Integrated Computer-Aided Engineering},
  volume	= {3},
  number	= {1},
  year		= {1996},
  publisher	= {Wiley},
  added		= {1996-08-02-14-49-29}
}

@Article{	  Whitney:32,
  author	= {H. Whitney},
  title		= {Congruent Graphs and the Connectivity of Graphs},
  journal	= {American Journal of Mathematics},
  volume	= {54},
  pages		= {150--168},
  year		= {1932},
  added		= {1996-03-28-11-35-01}
}

@InProceedings{	  Wileden:79,
  author	= {Jack C. Wileden},
  title		= {{Relationships between Graph Grammars and the Design and
		  Analysis of Concurrent Software}},
  editor	= {Volker Claus and Hartmut Ehrig and Grzegorz Rozenberg},
  booktitle	= {Proc.\ 1st Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science and Biology},
  series	= {Lecture Notes in Computer Science},
  volume	= {73},
  pages		= {456--463},
  year		= {1979},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@TechReport{	  Wilharm:81,
  author	= {Anne Wilharm},
  title		= {{Anwendung der Theorie von Graphgrammatiken auf die
		  Spezifikation der Prozess-Steuerung von
		  Eisenbahnsystemen}},
  number	= {81-15},
  year		= {1981},
  institution	= {Berlin},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Wills:96,
  author	= {Linda M. Wills},
  title		= {{Using Attributed Flow Graph Parsing to Recognize
		  Clich{\'e}s in Programs}},
  editor	= {Janice E. Cuny and Hartmut Ehrig and Gregor Engels and
		  Grzegorz Rozenberg},
  booktitle	= {Proc.\ 5th Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {1073},
  pages		= {170--184},
  year		= {1996},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@Manual{	  Winter,
  author	= {A. J. Winter},
  title		= {{G}uided {P}rototype {G}eneration},
  organization	= {{RWTH} Aachen},
  address	= {D-52056 Aachen, Germany},
  added		= {1996-04-16-07-34-15}
}

@Article{	  Woods:70,
  author	= {W. A. Woods},
  title		= {Transition Network Grammars for Natural Language
		  Analysis},
  journal	= {Comm. ACM},
  volume	= {13},
  number	= {10},
  pages		= {591--606},
  year		= {1970},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Wu-Rosenfeld:79,
  author	= {A. Wu and Azriel Rosenfeld},
  title		= {Cellular Graph Automata},
  journal	= {Lecture Notes in Computer Science},
  volume	= {73},
  pages		= {464--475},
  year		= {1979},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Wu-Rosenfeld:79b,
  author	= {A. Wu and Azriel Rosenfeld},
  title		= {Cellular Graph Automata {I}},
  journal	= {Information and Control},
  volume	= {42},
  pages		= {305--329},
  year		= {1979},
  added		= {1996-03-13-10-09-20}
}

@Article{	  Wu-Rosenfeld:79c,
  author	= {A. Wu and Azriel Rosenfeld},
  title		= {Cellular Graph Automata {II}},
  journal	= {Information and Control},
  volume	= {42},
  pages		= {330--353},
  year		= {1979},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Wu-Rosenfeld:79d,
  author	= {Angela Wu and Azriel Rosenfeld},
  title		= {{Cellular Graph Automata}},
  editor	= {Volker Claus and Hartmut Ehrig and Grzegorz Rozenberg},
  booktitle	= {Proc.\ 1st Int.\ Workshop on Graph-Grammars and Their
		  Application to Computer Science and Biology},
  series	= {Lecture Notes in Computer Science},
  volume	= {73},
  pages		= {464--475},
  year		= {1979},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@Article{	  Wu-Rosenfeld:80,
  author	= {A. Wu and Azriel Rosenfeld},
  title		= {Sequential and Cellular Graph Automata},
  journal	= {Information Sciences},
  volume	= {20},
  pages		= {57--68},
  year		= {1980},
  added		= {1996-03-13-10-09-20}
}

@Article{	  ZFueloep:80,
  author	= {Z.~F{\"u}l{\"o}p},
  title		= {On Attributed Tree Transducers},
  journal	= {Acta Cybernetica},
  volume	= {5},
  pages		= {261--280},
  year		= {1980},
  added		= {2000-05-23-18-31-23}
}

@InProceedings{	  Zinssmeister-McCreary:96,
  author	= {Gaby Zin{\ss}meister and Carolyn L. McCreary},
  title		= {{Drawing Graphs with Attribute Graph Grammars}},
  editor	= {Janice E. Cuny and Hartmut Ehrig and Gregor Engels and
		  Grzegorz Rozenberg},
  booktitle	= {Proc.\ 5th Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {1073},
  pages		= {443--453},
  year		= {1996},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}

@InProceedings{	  Zuendorf-Schuerr:91,
  author	= {A. Z{\"u}ndorf and A. Sch{\"u}rr},
  title		= {Nondeterministic Control Structures for Graph Rewriting
		  Systems},
  editor	= {G. Schmidt and R. Berghammer},
  booktitle	= {Graph-Theoric Concepts in Computer Science, 17th
		  International Workshop, WG'91, Fishbachau, Germany},
  series	= {Lecture Notes in Computer Science},
  number	= {643},
  pages		= {48--62},
  year		= {1991},
  publisher	= {Springer-Verlag},
  added		= {1996-04-16-07-34-15}
}

@TechReport{	  Zuendorf-Schuerr:91b,
  author	= {A. Z{\"u}ndorf and A. Sch{\"u}rr},
  title		= {Nondeterministic Control Structures for Graph Rewriting
		  Systems},
  number	= {91-17},
  year		= {1991},
  institution	= {Lehrstuhl fur Informatik III, Aachen University of
		  Technology, Germany},
  added		= {1996-04-16-07-34-15}
}

@InProceedings{	  Zuendorf-Schuerr:92,
  ATTENTION	= {newer record added: Apr 16, 1996},
  author	= {Albert Z{\"u}ndorf and Andy Sch{\"u}rr},
  title		= {Nondeterministic Control Structures for Graph Rewriting
		  Systems},
  editor	= {G. Schmidt and R. Berghammer},
  booktitle	= {Graph-Theoretic Concepts in Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {570},
  pages		= {48--62},
  year		= {1992},
  added		= {1996-03-13-10-09-20}
}

@TechReport{	  Zuendorf:92,
  author	= {A. Z{\"u}ndorf},
  title		= {Implementation of the imperative / rule based language
		  {PROGRES}},
  number	= {92-38},
  year		= {1992},
  institution	= {Department of computer science III, Aachen University of
		  Technology, Germany},
  added		= {1996-04-16-07-34-15}
}

@TechReport{	  Zuendorf:93,
  author	= {A. Z{\"u}ndorf},
  title		= {A Heuristique for the Subgraph Isomorphism Problem in
		  Executing {PROGRES}},
  number	= {93-05},
  year		= {1993},
  institution	= {Department of Computer Science III, Aachen University of
		  Technology},
  added		= {1996-04-16-07-34-15}
}

@PhDThesis{	  Zuendorf:95,
  ATTENTION	= {newer record added: Nov 28, 1996},
  author	= {Albert Z{\"u}ndorf},
  title		= {{Eine Entwicklungsumgebung f\"ur PROgrammierte
		  GRaphErsetzungsSysteme}},
  year		= {1995},
  school	= {RWTH Aachen, Germany},
  added		= {1996-03-13-10-09-20}
}

@Book{		  Zuendorf:95b,
  ATTENTION	= {newer record added: Aug 02, 1996},
  author	= {Albert Z{\"u}ndorf},
  title		= {{Eine Entwicklungsumgebung f\"ur PROgrammierte
		  GRaphErsetzungsSysteme}},
  year		= {1995},
  publisher	= {Deutscher Universit{\"a}tsverlag},
  address	= {Wiesbaden},
  added		= {1996-03-13-10-09-20}
}

@InProceedings{	  Zuendorf:96,
  ATTENTION	= {newer record added: Jul 30, 1996},
  author	= {Albert Z{\"u}ndorf},
  title		= {Graph Pattern Matching in {PROGRES}},
  booktitle	= {Graph Grammars and Their Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  year		= {1996},
  note		= {To appear},
  added		= {1996-03-13-10-09-20}
}

@Book{		  Zuendorf:96b,
  author	= {A. Z{\"u}ndorf},
  title		= {{Eine Entwicklungsumgebung f{\"u}r programmierte
		  Graphersetzungssysteme}},
  year		= {1996},
  publisher	= {Deutscher Universit{\"a}tsverlag},
  address	= {Wiesbaden},
  note		= {Dissertation, RWTH Aachen},
  added		= {1996-08-02-14-49-29}
}

@InProceedings{	  Zuendorf:96c,
  author	= {Albert Z{\"u}ndorf},
  title		= {{Graph Pattern Matching in PROGRES}},
  editor	= {Janice E. Cuny and Hartmut Ehrig and Gregor Engels and
		  Grzegorz Rozenberg},
  booktitle	= {Proc.\ 5th Int.\ Workshop on Graph Grammars and their
		  Application to Computer Science},
  series	= {Lecture Notes in Computer Science},
  volume	= {1073},
  pages		= {454--468},
  year		= {1996},
  publisher	= {Springer-Verlag},
  added		= {1999-05-25-15-48-47}
}